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Rev. 1.71

50

April 11, 2017

Rev. 1.71

51

April 11, 2017

HT66F002/HT66F0025/HT66F003/HT66F004

Cost-Effective A/D Flash MCU with EEPROM

HT66F002/HT66F0025/HT66F003/HT66F004

Cost-Effective A/D Flash MCU with EEPROM

Reset Functions

There are several ways in which a microcontroller reset can occur, through events occurring both
internally and externally

:

Power-on Reset

The most fundamental and unavoidable reset is the one that occurs after power is first applied to
the microcontroller. As well as ensuring that the Program Memory begins execution from the first
memory address, a power-on reset also ensures that certain other registers are preset to known
conditions. All the I/O port and port control registers will power up in a high condition ensuring that
all pins will be first set to inputs.

Note: t

RSTD

is power-on delay, typical time=50ms

Power-On Reset Timing Chart

RES Pin Reset

Although the microcontroller has an internal RC reset function, if the V

DD

power supply rise time

is not fast enough or does not stabilise quickly at power-on, the internal reset function may be
incapable of providing proper reset operation. For this reason it is recommended that an external
RC network is connected to the RES pin, whose additional time delay will ensure that the RES pin
remains low for an extended period to allow the power supply to stabilise. During this time delay,
normal operation of the microcontroller will be inhibited. After the RES line reaches a certain
voltage value, the reset delay time t

RSTD

is invoked to provide an extra delay time after which the

microcontroller will begin normal operation. The abbreviation SST in the figures stands for System
Start-up Timer.
For most applications a resistor connected between V

DD

and the RES pin and a capacitor connected

between VSS and the RES pin will provide a suitable external reset circuit. Any wiring connected
to the RES pin should be kept as short as possible to minimize any stray noise interference. For
applications that operate within an environment where more noise is present the Enhanced Reset
Circuit shown is recommended.

Note: “*” It is recommended that this component is added for added ESD protection

“**” It is recommended that this component is added in environments where power line noise

is significant

External RES Circuit

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Содержание HT66F002

Страница 1: ...Cost Effective A D Flash MCU with EEPROM HT66F002 HT66F0025 HT66F003 HT66F004 Revision V1 71 Date April 11 2017...

Страница 2: ...HT66F004 18 Power on Reset Electrical Characteristics 18 System Architecture 19 Clocking and Pipelining 19 Program Counter 20 Stack 21 Arithmetic and Logic Unit ALU 21 Flash Program Memory 22 Structur...

Страница 3: ...ystem Clocks 38 System Operation Modes 39 Control Register 40 Operating Mode Switching 42 NORMAL Mode to SLOW Mode Switching 43 SLOW Mode to NORMAL Mode Switching 44 Entering the SLEEP0 Mode 44 Enteri...

Страница 4: ...se Mode 80 Capture Input Mode 82 Periodic Type TM PTM 83 Periodic TM Operation 83 Periodic Type TM Register Description 84 Periodic Type TM Operating Modes 88 Compare Match Output Mode 88 Timer Counte...

Страница 5: ...lication Circuits 121 Instruction Set 122 Introduction 122 Instruction Timing 122 Moving and Transferring Data 122 Arithmetic Operations 122 Logical and Rotate Operation 123 Branches and Control Trans...

Страница 6: ...instruction Peripheral Features Flash Program Memory 1K 14 2K 15 RAM Data Memory 64 8 96 8 True EEPROM Memory 32 8 Watchdog Timer function Up to 18 bidirectional I O lines Software controlled 4 SCOM...

Страница 7: ...ostile electrical environments A full choice of HIRC and LIRC oscillator functions are provided including a fully integrated system oscillator which requires no external components for its implementat...

Страница 8: ...for HT66F004 Pin Assignment HT66F002 10 MSOP A 10 9 8 7 6 1 2 3 4 5 VDD AVDD PA6 STP0I STCK0 PA5 INT STP0B AN3 PA7 INT STCK0 RES ICPCK PA4 VSS AVSS PA0 STP0 STP0I AN0 ICPDA PA1 STP0B AN1 VREF PA2 INT...

Страница 9: ...N5 VREFO PA7 PTP1 AN6 PB0 INT0 AN0 PB1 INT1 AN1 HT66F003 HT66V003 16 NSOP A VSS AVSS PA0 STP0I AN0 OCDSDA ICPDA PA1 AN1 VREF PA2 INT STCK0 AN2 OCDSCK ICPCK PA3 INT STCK0 AN3 VDD AVDD PA6 PTCK1 STP0I S...

Страница 10: ...ICPDA ST CMOS ICP Data Line PA1 STP0B AN1 VREF PA1 PAWU PAPU PASR ST CMOS General purpose I O Register enabled pull up and wake up STP0B PASR CMOS TM0 STM inverting output AN1 PASR AN ADC input chann...

Страница 11: ...STP0I PASR IFS0 ST TM0 STM input AN0 PASR AN ADC input channel 0 OCDSDA ST CMOS On Chip Debug System Data Line OCDS EV only ICPDA ST CMOS ICP Data Line PA1 AN1 VREF PA1 PAWU PAPU PASR ST CMOS General...

Страница 12: ...TP1I VREFO PB0 PBPU PBSR ST CMOS General purpose I O Register enabled pull up PTP1I PBSR IFS0 ST TM1 PTM input VREFO PBSR AN ADC reference voltage output PB1 PTCK1 STP0B PB1 PBPU PBSR ST CMOS General...

Страница 13: ...O Register enabled pull up and wake up PTCK1 PASR ST PTM1 clock input AN3 PASR AN ADC input channel 3 PA5 AN4 VREF PA5 PAWU PAPU PASR ST CMOS General purpose I O Register enabled pull up and wake up A...

Страница 14: ...eral purpose I O Register enabled pull up RES RSTC ST External reset input VDD VDD PWR Digital positive power supply AVDD AVDD PWR Analog positive power supply VSS VSS PWR Digital negative power suppl...

Страница 15: ...No load fSYS fH 64 ADC off WDT enable LVR enable 0 5 0 8 mA 5V 0 8 1 1 mA IIDLE0 IDLE0 Mode Standby Current LIRC on 3V No load ADC off WDT enable LVR disable 1 3 3 0 A 5V 5 0 10 A IIDLE1 IDLE1 Mode St...

Страница 16: ...Hz tTIMER xTCKn xTPnI Input Pulse Width 0 3 s tRES External Reset Low Pulse Width 10 s tINT Interrupt Pulse Width 0 3 s tEERD EEPROM Read Time 2 4 tSYS tEEWR EEPROM Write Time 2 5 ms tSST System Start...

Страница 17: ...2 0 mA 5V No load tADCK 0 5 s 1 5 3 0 mA tADCK A D Converter Clock Period 2 7 5 5V 0 5 10 s tADC A D Conversion Time Include Sample and Hold Time 2 7 5 5V 12 bit ADC 16 20 tADCK tADS A D Converter Sa...

Страница 18: ...ctrical Characteristics HT66F004 Symbol Parameter Test Conditions Min Typ Max Unit VDD Conditions IBIAS VDD 2 Bias Current for LCD 5V ISEL 1 0 00 17 5 25 0 32 5 A ISEL 1 0 01 35 50 65 A ISEL 1 0 10 70...

Страница 19: ...e simple addressing methods of these registers along with additional architectural features ensure that a minimum of external components is required to provide a functional I O and A D control system...

Страница 20: ...uctions requiring jumps to non consecutive addresses such as a jump instruction a subroutine call interrupt or reset etc the microcontroller manages program control by loading the required address int...

Страница 21: ...struction can still be executed which will result in a stack overflow Precautions should be taken to avoid such cases which might cause unpredictable program branching If the stack is overflow the fir...

Страница 22: ...k up Table Initialisation Vector 15 bits Interrupt Vectors Look up Table 7FFH 01CH HT66F003 HT66F004 018H Initialisation Vector 14 bits Interrupt Vectors Look up Table HT66F0025 7FFH Program Memory St...

Страница 23: ...re should be taken to ensure its protection if both the main routine and Interrupt Service Routine use table read instructions If using the table read instructions the Interrupt Service Routines may c...

Страница 24: ...it programming of the device are beyond the scope of this document and will be supplied in supplementary literature HT66F002 HT66F0025 Writer_VDD ICPDA ICPCK Writer_VSS To other Circuit VDD PA0 PA7 VS...

Страница 25: ...in Bank 1 Switching between the different Data Memory banks is achieved by setting the Bank Pointer to the correct value The start address of the Data Memory for all devices is the address 00H Genera...

Страница 26: ...EEA 12H 19H 18H 1BH 1AH 1DH 1CH 1FH 1EH 13H 14H 15H 16H 17H INTEG Unused STM0AL PAPU PAWU 20H 21H 22H 29H 28H 2BH 2AH 2DH 2CH 2EH 3FH 23H 24H 25H 26H 27H BP STM0DL STM0C1 STM0DH PA PAC STM0C0 INTC0 U...

Страница 27: ...17H INTEG Unused STM0AL PAPU PAWU 20H 21H 22H 29H 28H 2BH 2AH 2DH 2CH 2EH 23H 24H 25H 26H 27H BP STM0DL STM0C1 STM0DH PA PAC STM0C0 INTC0 Unused read as 00 EED Unused Unused STM0AH Unused Unused MFI0...

Страница 28: ...PA PAC INTC0 Unused read as 00 EED Unused Unused PTM0AL Unused Unused MFI0 Unused WDTC TBC SMOD1 PASR RSTC SADC1 SADC0 SADC2 SADOL SADOH Bank0 Bank1 Bank0 Bank1 PTM1AH PTM1DH PTM1DL PTM1AL PTM1C1 PTM...

Страница 29: ...operation Memory Pointers MP0 MP1 Two Memory Pointers known as MP0 and MP1 are provided These Memory Pointers are physically implemented in the Data Memory and can be manipulated in the same way as no...

Страница 30: ...the Data Memory resulting in higher programming and timing overheads Data transfer operations usually involve the temporary storage function of the Accumulator for example when transferring data betwe...

Страница 31: ...he status of the latest operations C is set if an operation results in a carry during an addition operation or if a borrow does not take place during a subtraction operation otherwise C is cleared C i...

Страница 32: ...e place during a subtraction operation C is also affected by a rotate through carry instruction EEPROM Data Memory These devices contain an area of internal EEPROM Data Memory EEPROM which stands for...

Страница 33: ...g the MP1 Memory Pointer and Indirect Addressing Register IAR1 Because the EEC control register is located at address 40H in Bank 1 the MP1 Memory Pointer must first be set to the value 40H and the Ba...

Страница 34: ...ROM read operations Bit 0 RD EEPROM Read Control 0 Read cycle has finished 1 Activate a read cycle This is the Data EEPROM Read Control Bit and when set high by the application program will activate a...

Страница 35: ...automatically cleared to zero by the microcontroller informing the user that the data has been written to the EEPROM The application program can therefore poll the WR bit to determine when the write c...

Страница 36: ...the devices should not enter the IDLE or SLEEP mode until the EEPROM read or write operation is totally complete Otherwise the EEPROM read or write operation will fail Programming Examples Reading da...

Страница 37: ...of higher power requirements while the opposite is of course true for the lower frequency oscillator With the capability of dynamically switching between fast and slow system clock these devices have...

Страница 38: ...Time Base Interrupts Operating Modes and System Clocks Present day applications require that their microcontrollers have high performance but often still demand that they consume as little power as po...

Страница 39: ...ller the NORMAL Mode and SLOW Mode The remaining four modes the SLEEP0 SLEEP1 IDLE0 and IDLE1 modes are used when the microcontroller CPU is switched off to conserve power Operating Mode Description C...

Страница 40: ...from driving the CPU but some peripheral functions will remain operational such as the Watchdog Timer and TMs In the IDLE0 Mode the system oscillator will be stopped IDLE1 Mode The IDLE1 Mode is ente...

Страница 41: ...ntrol bit and determines what happens when the HALT instruction is executed If this bit is high when a HALT instruction is executed the device will enter the IDLE Mode In the IDLE1 Mode the CPU will s...

Страница 42: ...in portable applications In simple terms Mode Switching between the NORMAL Mode and SLOW Mode is executed using the HLCLK bit and CKS2 CKS0 bits in the SMOD register while Mode Switching from the NORM...

Страница 43: ...setting the HLCLK bit to 0 and setting the CKS2 CKS0 bits to 000 or 001 in the SMOD register This will then use the low speed system oscillator which will consume less power Users may decide to do th...

Страница 44: ...ing the SLEEP0 Mode There is only one way for the devices to enter the SLEEP0 Mode and that is to execute the HALT instruction in the application program with the IDLEN bit in SMOD register equal to 0...

Страница 45: ...ON bit in SMOD1 register equal to 0 When this instruction is executed under the conditions described above the following will occur The system clock will be stopped and the application program will st...

Страница 46: ...ternal falling edge on Port A A system interrupt A WDT overflow If the system is woken up by an external reset the device will experience a full system reset however If these devices are woken up by a...

Страница 47: ...sabled using the WDTC register Watchdog Timer Control Register A single register WDTC controls the required timeout period as well as the enable disable operation The WRF software reset flag will be i...

Страница 48: ...unknown location or enters an endless loop the clear WDT instructions will not be executed in the correct manner in which case the Watchdog Timer will overflow and reset the device With regard to the...

Страница 49: ...ned state and ready to execute the first program instruction After this power on reset certain important internal registers will be set to defined states before the program commences One of these regi...

Страница 50: ...g proper reset operation For this reason it is recommended that an external RC network is connected to the RES pin whose additional time delay will ensure that the RES pin remains low for an extended...

Страница 51: ...ion 01010101 Configured as PC2 pin or other function 10101010 Configured as RES pin Other Values Inhibit to use All reset will reset this register as POR value except WDT time out Hardware warm reset...

Страница 52: ...ribe elsewhere Watchdog Time out Reset during Normal Operation The Watchdog time out Reset during normal operation is the same as an LVR reset except that the Watchdog time out flag TO will be set to...

Страница 53: ...t u u LVR reset during NORMAL or SLOW Mode operation 1 u WDT time out reset during NORMAL or SLOW Mode operation 1 1 WDT time out reset during IDLE or SLEEP Mode operation Note u stands for unchanged...

Страница 54: ...0 0 0 0 0 11 0 0 0 0 0 11 0 0 0 0 0 11 0 0 0 0 0 11 u u u u u u u INTEG 0 0 0 0 0 0 0 0 u u INTC0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 u u u u u u u INTC1 0 0 0 0 0 0 0 0 0 0 0 0 0...

Страница 55: ...0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 u u u u u u u u PTM0DL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 u u u u u u u u PTM0DH 0 0 0 0 0 0 0 0 u u PTM0AL 0 0 0 0 0...

Страница 56: ...tput operations For input operation these ports are non latching which means the inputs must be ready at the T2 rising edge of instruction MOV A m where m denotes the port address For output operation...

Страница 57: ...resistors all I O pins when configured as an input have the capability of being connected to an internal pull high resistor These pull high resistors are selected using register PAPU PCPU and are impl...

Страница 58: ...O Port A bit 7 bit 0 Wake Up Control 0 Disable 1 Enable I O Port Control Registers Each I O port has its own control register known as PAC PCC to control the input output configuration With these cont...

Страница 59: ...Control 0 Output 1 Input Pin shared Functions The flexibility of the microcontroller range is greatly enhanced by the use of pins that have more than one function Limited numbers of pins can force se...

Страница 60: ...on a wide range of different functions can be incorporated into even relatively small package sizes PASR Register HT66F002 HT66F0025 Bit 7 6 5 4 3 2 1 0 Name PAS7 PAS6 PAS5 PAS4 PAS3 PAS2 PAS1 PAS0 R...

Страница 61: ...4 Pin Shared Control Bit 0 PA3 INT STCK0 1 AN3 Bit 3 PAS3 Pin Shared Control Bit 0 PA2 INT STCK0 1 AN2 Bit 2 1 PAS2 PAS1 Pin Shared Control Bits 0X PA1 10 VREF 11 AN1 Bit 0 PAS0 Pin Shared Control Bit...

Страница 62: ...hared Control Bits 0 PB1 PTCK1 1 STP0B Bit 0 PBS0 Pin Shared Control Bit 0 PB0 PTP1I 1 VREFO PBSR Register HT66F004 Bit 7 6 5 4 3 2 1 0 Name PBS6 PBS5 PBS4 PBS3 PBS2 PBS1 PBS0 R W R W R W R W R W R W...

Страница 63: ...efault 01 INT on PA2 10 INT on PA3 11 INT on PA7 IFS0 Register HT66F003 Bit 7 6 5 4 3 2 1 0 Name PTCK1PS1 PTCK1PS0 STCK0PS STP0IPS PTP1IPS INTPS1 INTPS0 R W R W R W R W R W R W R W R W POR 0 0 0 0 0 0...

Страница 64: ...e internal structures of some generic I O pin types As the exact logical construction of the I O pin will differ from these drawings they are supplied as a guide only to assist with the functional und...

Страница 65: ...e port control registers are then programmed to setup some pins as outputs these output pins will have an initial high output value unless the associated port data registers are first programmed Selec...

Страница 66: ...tures and differences between the two types of TMs are summarised in the accompanying table Function STM PTM Timer Counter I P Capture Compare Match Output PWM Channels 1 1 Single Pulse Output 1 1 PWM...

Страница 67: ...ch have two output pins with the label xTPn and xTPnB When the TM is in the Compare Match Output Mode these pins can be controlled by the TM to switch to a high or low level or to toggle when a compar...

Страница 68: ...ures Accessing the CCRA or CCRP low byte register without following these access procedures will result in unpredictable values 8 bit Buffer PTMnDH PTMnDL PTMnRPH PTMnRPL PTMnAH PTMnAL PTM Counter Reg...

Страница 69: ...tors with the names Comparator A and Comparator P These comparators will compare the value in the counter with CCRP and CCRA registers The CCRP is 3 bit wide whose value is compared with the highest 3...

Страница 70: ...er The counter will retain its residual value when this bit changes from low to high and resume counting from this value when the bit changes to a low value again bit 6 4 ST0CK2 ST0CK0 Select STM Coun...

Страница 71: ...Bit 7 6 5 4 3 2 1 0 Name ST0M1 ST0M0 ST0IO1 ST0IO0 ST0OC ST0POL ST0DPX ST0CCLR R W R W R W R W R W R W R W R W R W POR 0 0 0 0 0 0 0 0 bit 7 6 ST0M1 ST0M0 Select STM0 Operating Mode 00 Compare Match...

Страница 72: ...ration depends upon whether STM is being used in the Compare Match Output Mode or in the PWM output Mode Single Pulse Output Mode It has no effect if the STM is in the Timer Counter Mode In the Compar...

Страница 73: ...1 0 Name D9 D8 R W R R POR 0 0 bit 7 2 Unimplemented read as 0 bit 1 0 STM0 Counter High Byte Register bit 1 bit 0 STM0 10 bit Counter bit 9 bit 8 STM0AL Register Bit 7 6 5 4 3 2 1 0 Name D7 D6 D5 D4...

Страница 74: ...r here only the STMA0F interrupt request flag will be generated even if the value of the CCRP bits is less than that of the CCRA registers Therefore when ST0CCLR is high no STMP0F interrupt request fl...

Страница 75: ...le Output Select Now ST0IO 1 0 10 Active High Output Select Output not affected by STMA0F flag Remains High until reset by ST0ON bit ST0CCLR 0 ST0M 1 0 00 ST0PAU Resume Stop Time CCRP 0 CCRP 0 ST0POL...

Страница 76: ...STMA0F flag Remains High until reset by ST0ON bit ST0CCLR 1 ST0M 1 0 00 ST0PAU Resume Stop Time CCRA 0 ST0POL Output Pin Reset to initial value Output inverts when ST0POL is high Output controlled by...

Страница 77: ...CCRA and CCRP registers are used to generate the PWM waveform one register is used to clear the internal counter and thus control the PWM waveform frequency while the other one is used to control the...

Страница 78: ...Counter Stop If ST0ON bit low Counter reset when ST0ON returns high PWM resumes operation Output controlled by Other pin shared function Time ST0DPX 0 ST0M 1 0 10 ST0POL Output Inverts When ST0POL 1 S...

Страница 79: ...CRA Counter Stop If ST0ON bit low Counter reset when ST0ON returns high PWM resumes operation Output controlled by Other pin shared function Time ST0DPX 1 ST0M 1 0 10 ST0POL Output Inverts When ST0POL...

Страница 80: ...lse Mode the ST0ON bit can also be made to automatically change from low to high using the external STCK0 pin which will in turn initiate the Single Pulse output When the ST0ON bit transitions to a hi...

Страница 81: ...ger Software Clear Software Trigger Software Trigger Single Pulse Mode Note 1 Counter stopped by CCRA match 2 CCRP is not used 3 The pulse is triggered by setting the ST0ON bit high 4 In the Single Pu...

Страница 82: ...CCRP value can be used to control the maximum counter value When a CCRP compare match occurs from Comparator P a STM interrupt will also be generated Counting the number of overflow interrupt signals...

Страница 83: ...external clock source There are two internal comparators with the names Comparator A and Comparator P These comparators will compare the value in the counter with the CCRA and CCRP registers The only...

Страница 84: ...List n 0 or 1 PTMnC0 Register Bit 7 6 5 4 3 2 1 0 Name PTnPAU PTnCK2 PTnCK1 PTnCK0 PTnON R W R W R W R W R W R W POR 0 0 0 0 0 Bit 7 PTnPAU PTM Counter Pause Control 0 run 1 pause The counter can be...

Страница 85: ...C PTnPOL PTnCKS PTnCCLR R W R W R W R W R W R W R W R W R W POR 0 0 0 0 0 0 0 0 Bit 7 6 PTnM1 PTnM0 Select PTM Operation Mode 00 Compare Match Output Mode 01 Capture Input Mode 10 PWM Mode or Single P...

Страница 86: ...initial high PWM Mode Single Pulse Output Mode 0 Active low 1 Active high This is the output control bit for the TM output pin Its operation depends upon whether TM is being used in the Compare Match...

Страница 87: ...er bit 1 bit 0 PTM 10 bit Counter bit 9 bit 8 PTMnAL Register Bit 7 6 5 4 3 2 1 0 Name D7 D6 D5 D4 D3 D2 D1 D0 R W R W R W R W R W R W R W R W R W POR 0 0 0 0 0 0 0 0 Bit 7 0 PTMnAL PTM CCRA Low Byte...

Страница 88: ...the PTMnC1 register is high then the counter will be cleared when a compare match occurs from Comparator A However here only the PTMAnF interrupt request flag will be generated even if the value of th...

Страница 89: ...Level Low if PTnOC 0 Output Toggle with PTMAnF flag Note PTnIO 1 0 10 Active High Output select Here PTnIO 1 0 11 Toggle Output select Output not affected by PTMAnF flag Remains High until reset by PT...

Страница 90: ...0 10 Active High Output select Here PTnIO 1 0 11 Toggle Output select Output not affected by TnAF flag Remains High until reset by PTnON bit Output Pin Reset to Initial value Output controlled by othe...

Страница 91: ...both the period and duty cycle of the PWM waveform can be controlled the choice of generated waveform is extremely flexible In the PWM mode the PTnCCLR bit has no effect as the PWM period Both of the...

Страница 92: ...PTnON bit low Counter Reset when PTnON returns high PTnDPX 0 PTnM 1 0 10 PWM Duty Cycle set by CCRA PWM resumes operation Output controlled by other pin shared function Output Inverts When PTnPOL 1 P...

Страница 93: ...art running and the pulse leading edge will be generated The PTnON bit should remain high when the pulse is in its active state The generated pulse trailing edge will be generated when the PTnON bit i...

Страница 94: ...lse Width set by CCRA Output Inverts when PTnPOL 1 No CCRP Interrupts generated PTM O P Pin PTnOC 0 PTCKn pin Software Trigger Cleared by CCRA match PTCKn pin Trigger Auto set by PTCKn pin Software Tr...

Страница 95: ...rrupt generated Irrespective of what events occur on the PTPnI or PTCKn pin the counter will continue to free run until the PTnON bit changes from high to low When a CCRP compare match occurs the coun...

Страница 96: ...X Counter Stop PTnIO 1 0 Value XX YY XX YY Active edge Active edge Active edge 00 Rising edge 01 Falling edge 10 Both edges 11 Disable Capture Capture Input Mode n 0 or 1 Note 1 PTnM 1 0 01 and active...

Страница 97: ...se signals directly into a 12 bit digital value The external or internal analog signal to be converted is determined by the SAINS and SACS bit fields Note that when the internal analog signal is to be...

Страница 98: ...DC0 START ADBZ ENADC ADRFS SACS2 SACS1 SACS0 SADC1 SAINS2 SAINS1 SAINS0 SACKS2 SACKS1 SACKS0 SADC2 ENOPA VBGEN SAVRS3 SAVRS2 SAVRS1 SAVRS0 A D Converter Register List HT66F004 A D Converter Data Regis...

Страница 99: ...rdware will only choose the internal signal as an ADC input In addition if the programs select external reference voltage VREF and the internal reference voltage VBG as ADC reference voltage then the...

Страница 100: ...t channel comes from AN1 010 ADC input channel comes from AN2 011 ADC input channel comes from AN3 100 ADC input channel comes from AN4 101 ADC input channel comes from AN5 110 ADC input channel comes...

Страница 101: ...voltage then the hardware will only choose the internal reference voltage VBG as an ADC reference voltage input A D Operation The START bit is used to start and reset the A D converter When the microc...

Страница 102: ...ould be properly configured to disable other pin functions When VREF or VBG is selected by ADC input or ADC reference voltage the OPA needs to be enabled by setting ENOPA 1 Reference SAVRS 3 0 Descrip...

Страница 103: ...D conversion rate A D clock period 16 However there is a usage limitation on the next A D conversion after the current conversion is complete When the current A D conversion is complete the converted...

Страница 104: ...S 3 0 Note 1 If select VREF as reference voltage PAS3 PAS2 1 0 for HT66F002 HT66F004 2 If select VREF as reference voltage PAS2 PAS1 1 0 for HT66F003 Step 6 Select ADC output data format by ADRFS Step...

Страница 105: ...sumption A D Transfer Function As the devices contain a 12 bit A D converter its full scale converted digitised value is equal to FFFH Since the full scale analog input value is equal to the VDD or VR...

Страница 106: ...sable ADC interrupt mov a 0BH mov SADC1 a select fSYS 8 as A D clock and switch off the bandgap reference voltage set ENADC mov a 03h setup PASR to configure pin AN0 mov PASR a mov a 20h mov SADC0 a e...

Страница 107: ...it to initiate conversion set START reset A D clr START start A D clr ADF clear ADC interrupt request flag set ADE enable ADC interrupt set EMI enable global interrupt ADC interrupt service routine AD...

Страница 108: ...own in the accompanying table The number of registers depends upon the device chosen but fall into three categories The first is the INTC0 INTC1 registers which setup the primary interrupts the second...

Страница 109: ...STMP0F STMA0E STMP0E HT66F003 Name Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 INTEG INT0S1 INT0S0 INTC0 TB1F TB0F INTF TB1E TB0E INTE EMI INTC1 MF1F ADF DEF MF0F MF1E ADE DEE MF0E MFI0 STMA0F STMP0F STMA...

Страница 110: ...terrupt 10 Falling Edge Interrupt 11 Dual Edge Interrupt INTC0 Register HT66F002 HT66F0025 T66F003 Bit 7 6 5 4 3 2 1 0 Name TB1F TB0F INTF TB1E TB0E INTE EMI R W R W R W R W R W R W R W R W POR 0 0 0...

Страница 111: ...Time Base 0 Interrupt Control 0 Disable 1 Enable Bit 1 INT0E INT0 Interrupt Control 0 Disable 1 Enable Bit 0 EMI Global Interrupt Control 0 Disable 1 Enable INTC1 Register HT66F002 HT66F0025 Bit 7 6 5...

Страница 112: ...r Interrupt Control 0 Disable 1 Enable Bit 1 DEE Data EEPROM Interrupt Control 0 Disable 1 Enable Bit 0 MF0E Multi function 0 Interrupt Control 0 Disable 1 Enable INTC1 Register HT66F004 Bit 7 6 5 4 3...

Страница 113: ...le MFI0 Register HT66F004 Bit 7 6 5 4 3 2 1 0 Name PTMA1F PTMP1F PTMA0F PTMP0F PTMA1E PTMP1E PTMA0E PTMP0E R W R W R W R W R W R W R W R W R W POR 0 0 0 0 0 0 0 0 Bit 7 PTMA1F TM1 Comparator A match i...

Страница 114: ...o will disable all interrupts When an interrupt is generated the Program Counter which stores the address of the next instruction to be executed will be transferred onto the stack The Program Counter...

Страница 115: ...Interrupt Name Request Flags Enable Bits Master Enable Vector EMI auto disabled in ISR Priority High Low M Funct 1 MF1F MF1E Interrupts contained within Multi Function Interrupts xxE Enable Bits xxF R...

Страница 116: ...tion interrupts Unlike the other independent interrupts these interrupts have no independent source but rather are formed from other existing interrupt sources namely the TM Interrupts A Multi functio...

Страница 117: ...her interrupts The purpose of the Time Base Interrupt is to provide an interrupt signal at fixed time periods Their clock sources originate from the internal clock source fTB This fTB input clock pass...

Страница 118: ...cleared they have to be cleared by the application program Interrupt Wake up Function Each of the interrupt functions has the capability of waking up the microcontroller when in the SLEEP or IDLE Mod...

Страница 119: ...llow further interrupts The RET instruction however only executes a return to the main program leaving the EMI bit in its present zero state and therefore disabling the execution of further interrupts...

Страница 120: ...W R W R W R W R W R W R W R W POR 0 0 0 0 0 0 0 Bit 7 Unimplemented read as 0 Bit 6 5 ISEL1 ISEL0 Select resistor for R type LCD bias current VDD 5V 00 2 100k 1 2 Bias IBIAS 25 A 01 2 50 k 1 2 Bias IB...

Страница 121: ...3 PA0 PA7 Reset Circuit HT66F002 HT66F0025 VDD VDD RES 10k 100k 0 01 F 1N4148 VSS 0 1 F 1 F 300 0 1 F AN0 AN3 PA0 PA7 Reset Circuit HT66F003 VDD VDD RES 10k 100k 0 01 F 1N4148 VSS 0 1 F 1 F 300 0 1 F...

Страница 122: ...o take one more cycle to implement As instructions which change the contents of the PCL will imply a direct jump to that new address one more cycle will be required Examples of such instructions would...

Страница 123: ...ful set of branch instructions are the conditional branches Here a decision is first made regarding the condition of a certain data memory or individual bits Depending upon the conditions the program...

Страница 124: ...n Data Memory 1Note Z C AC OV DAA m Decimal adjust ACC for Addition with result in Data Memory 1Note C Logic Operation AND A m Logical AND Data Memory to ACC 1 Z OR A m Logical OR Data Memory to ACC 1...

Страница 125: ...turn from subroutine and load immediate data to ACC 2 None RETI Return from interrupt 2 None Table Read TABRD m Read table specific page to TBLH and Data Memory 2Note None TABRDC m Read table current...

Страница 126: ...of the Accumulator and the specified immediate data are added The result is stored in the Accumulator Operation ACC ACC x Affected flag s OV Z AC C ADDM A m Add ACC to Data Memory Description The con...

Страница 127: ...scription The TO PDF flags and the WDT are all cleared Operation WDT cleared TO 0 PDF 0 Affected flag s TO PDF CLR WDT1 Pre clear Watchdog Timer Description The TO PDF flags and the WDT are all cleare...

Страница 128: ...be affected by this instruction which indicates that if the original BCD sum is greater than 100 it allows multiple precision decimal addition Operation m ACC 00H or m ACC 06H or m ACC 60H or m ACC 6...

Страница 129: ...emory Operation m ACC Affected flag s None NOP No operation Description No operation is performed Execution continues with the next instruction Operation No operation Affected flag s None OR A m Logic...

Страница 130: ...RLA m Rotate Data Memory left with result in ACC Description The contents of the specified Data Memory are rotated left by 1 bit with bit 7 rotated into bit 0 The rotated result is stored in the Accum...

Страница 131: ...cted flag s C SBC A m Subtract Data Memory from ACC with Carry Description The contents of the specified Data Memory and the complement of the carry flag are subtracted from the Accumulator The result...

Страница 132: ...sult is not 0 the program proceeds with the following instruction Operation m m 1 Skip if m 0 Affected flag s None SIZA m Skip if increment Data Memory is zero with result in ACC Description The conte...

Страница 133: ...ed Data Memory are interchanged The result is stored in the Accumulator The contents of the Data Memory remain unchanged Operation ACC 3 ACC 0 m 7 m 4 ACC 7 ACC 4 m 3 m 0 Affected flag s None SZ m Ski...

Страница 134: ...e to TBLH and Data Memory Description The low byte of the program code last page addressed by the table pointer TBLP is moved to the specified Data Memory and the high byte moved to TBLH Operation m p...

Страница 135: ...ated at regular intervals users are reminded to consult the Holtek website for the latest version of the Package Carton Information Additional supplementary information with regard to packaging is lis...

Страница 136: ...0mil Outline Dimensions Symbol Dimensions in inch Min Nom Max A 0 236 BSC B 0 154 BSC C 0 012 0 020 C 0 193 BSC D 0 069 E 0 050 BSC F 0 004 0 010 G 0 016 0 050 H 0 004 0 010 0 8 Symbol Dimensions in m...

Страница 137: ...0mil Outline Dimensions Symbol Dimensions in inch Min Nom Max A 0 236 BSC B 0 154 BSC C 0 012 0 018 C 0 193 BSC D 0 069 E 0 039 BSC F 0 004 0 010 G 0 016 0 050 H 0 004 0 010 0 8 Symbol Dimensions in m...

Страница 138: ...ch Min Nom Max A 0 043 A1 0 000 0 006 A2 0 030 0 033 0 037 B 0 007 0 013 C 0 003 0 009 D 0 118 BSC E 0 193 BSC E1 0 118 BSC e 0 020 BSC L 0 016 0 024 0 031 L1 0 037 BSC y 0 004 0 8 Symbol Dimensions i...

Страница 139: ...150mil Outline Dimensions Symbol Dimensions in inch Min Nom Max A 0 236 BSC B 0 154 BSC C 0 012 0 020 C 0 390 BSC D 0 069 E 0 050 BSC F 0 004 0 010 G 0 016 0 050 H 0 004 0 010 0 8 Symbol Dimensions i...

Страница 140: ...ages See Fig 1 Symbol Dimensions in inch Min Nom Max A 0 980 1 030 1 060 B 0 240 0 250 0 280 C 0 115 0 130 0 195 D 0 115 0 130 0 150 E 0 014 0 018 0 022 F 0 045 0 060 0 070 G 0 1BSC H 0 300 0 310 0 32...

Страница 141: ...Nom Max A 0 945 0 965 0 985 B 0 275 0 285 0 295 C 0 120 0 135 0 150 D 0 110 0 130 0 150 E 0 014 0 018 0 022 F 0 045 0 050 0 060 G 0 1BSC H 0 300 0 310 0 325 I 0 430 Symbol Dimensions in mm Min Nom Ma...

Страница 142: ...il Outline Dimensions Symbol Dimensions in inch Min Nom Max A 0 406 BSC B 0 406 BSC C 0 012 0 020 C 0 504 BSC D 0 104 E 0 050 BSC F 0 004 0 012 G 0 016 0 050 H 0 008 0 013 0 8 Symbol Dimensions in mm...

Страница 143: ...50mil Outline Dimensions Symbol Dimensions in inch Min Nom Max A 0 236 BSC B 0 155 BSC C 0 008 0 012 C 0 341 BSC D 0 069 E 0 025 BSC F 0 004 0 0098 G 0 016 0 05 H 0 004 0 01 0 8 Symbol Dimensions in m...

Страница 144: ...ed herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification nor recommends the use of...

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