ML620Q503/Q504 User’s Manual
Chapter 17 Port 0
FEUL620Q504 17–10
17.3 Description of Operation
17.3.1 Input/Output Port Functions
For each pin of Port 0, either output or input is selected by setting the Port 0 direction register (P0DIR).
In output mode, high-impedance output mode, P-channel open drain output mode, N-channel open drain output mode,
or CMOS output mode can be selected by setting the Port 0 control registers 0 and 1 (P0CON0 and P0CON1).
In input mode, high-impedance input mode, input mode with a pull-down resistor, or input mode with a pull-up resistor
can be selected by setting the Port 0 control registers 0 and 1 (P0CON0 and P0CON1).
At a system reset, high-impedance output mode is selected as the initial state.
In output mode, “L” or “H” level is output to each pin of Port 0 depending on the value set by the Port 0 data register
(P0D).
In input mode, the input level of each pin of Port 0 can be read from the Port 0 data register (P0D).
17.3.2 Primary Function except for Input/Output Port
Port 0 is assigned to the SA-ADC input pins (AIN8, AIN9, AIN10, AIN11), External interrupts (EXI00, EXI01, EXI02,
EXI03, EXI04, EXI05).
When used as the SA-ADC input pins, set the applicable port to the high impedance output state.
When used as the External interrupts, set the applicable port to the input state.
17.3.3 Secondary ,Tertiary and Fourthly Functions
Secondary, tertiary and fourthly functions are assigned to Port 0 as the RC-ADC (channel 0) oscillation pins (IN0, CS0,
RS0, RT0, RCT0, RCM), the SSIO pins (SIN0, SOUT0,SCK0), the UART pins (RXD0, TXD0), FTM output
pins(TMOUT0,TMOUT1). These pins can be used in a secondary, tertiary or fourthly function mode by setting the
P05MD0 to P00MD0 bits and the P05MD1 to P00MD1 bits of the Port 0 mode registers (P0MOD0, P0MOD1).
When used as the RC-ADC, set the P00 to P05 to the high impedance input state and RC-ADC mode.
Содержание LAPIS SEMICONDUCTOR ML620Q503
Страница 2: ...ML620Q503 Q504 User s Manual Issue Date Apr 16 2015 FEUL620Q504 01...
Страница 18: ...Chapter 1 Overview...
Страница 32: ...Chapter 2 CPU and Memory Space...
Страница 44: ...Chapter 3 Reset Function...
Страница 50: ...Chapter 4 Power Management...
Страница 70: ...Chapter 5 Interrupts...
Страница 134: ...Chapter 6 Clock Generation Circuit...
Страница 161: ...Chapter 7 Time Base Counter...
Страница 170: ...Chapter 8 Timers...
Страница 183: ...Chapter 9 Function Timer FTM...
Страница 231: ...Chapter 10 Watchdog Timer...
Страница 239: ...Chapter 11 Synchronous Serial Port SSIO...
Страница 251: ...Chapter 12 Synchronous Serial Port with FIFO SSIOF...
Страница 283: ...Chapter 13 UART...
Страница 303: ...Chapter 14 UART with FIFO UARTF...
Страница 327: ...Chapter 15 I2 C Bus Interface...
Страница 344: ...Chapter 16 Port XT...
Страница 350: ...Chapter 17 Port 0...
Страница 361: ...Chapter 18 Port 1...
Страница 368: ...Chapter 19 Port2...
Страница 379: ...Chapter 20 Port 3...
Страница 395: ...Chapter 21 Port 4...
Страница 410: ...Chapter 22 Port 5...
Страница 426: ...Chapter 23 Melody Driver...
Страница 439: ...Chapter 24 RC Oscillation type A D Converter RC ADC...
Страница 462: ...Chapter 25 Successive Approximation Type A D Converter SA ADC...
Страница 479: ...Chapter 26 Analog Comparator...
Страница 489: ...Chapter 27 Flash Memory Control...
Страница 505: ...Chapter 28 Voltage Level Supervisor VLS...
Страница 517: ...Chapter 29 LLD circuit...
Страница 519: ...Chapter 30 On Chip Debug Function...
Страница 522: ...Appendixes...
Страница 552: ...Revision History...