Page 198
14. 8-bit Timer Counter (TC0)
TMP89FM42
RA002
When write instructions are executed on T00PWM and T01PWM in this order while the
timer is stopped, the set value is immediately stored in T01+00PWM.
Figure 14-15 12-bit PWM Mode Timing Chart
(Example)
Operate TC00 and TC01 in the 12-bit PWM mode with the operation clock of fcgck/2 and output a duty pulse nearly equiva-
lent to 14.0625
µ
s in 51.2
µ
s cycles (fcgck = 10 MHz)
(Actually, output a duty pulse of 225
µ
s in total in 16 cycles (819.2
µ
s))
SET
(P7FC).1
; Sets P7FC1 to "1"
SET
(P7CR).1
; Sets P7CR1 to "1"
LD
(POFFCR0),0x10
; Sets TC001EN to "1"
DI
; Sets the interrupt master enable flag to "disable"
SET
(EIRH).4
; Sets the INTTC00 interrupt enable register to "1"
EI
; Sets the interrupt master enable flag to "enable"
LD
(T01MOD),0xF2
; Selects the 16-bit PWM mode and fcgck/2
LD
(T00PWM),0x65
; Sets the timer register (duty pulse)
; (14.0625
µ
s
×
16) / (2/fcgck) = 0x465
LD
(T00PWM),0x04
; Sets the timer register (duty pulse)
LD
(T001CR),0x06
; Starts TC00 and TC01
Source clock
Counter
Timer start
1
0
km (0001)
km
km
(Duty pulse)
256 counts
(Cycle 1)
256 counts
(Cycle 2)
256 counts
(Cycle 9)
256 counts
(Cycle 16)
(Cycle 17)
rs (0011)
rs
Write to T00PWM
Double buffer
Match detection
Write m (0001)
Write s (0011)
Becomes the level selected at
TFF0 while the timer is stopped
Interrupt request
Interrupt reques
Interrupt request
Write to T01PWM
Write k
Write r
INTT00 interrupt request
INTT00 interrupt request
1
km
+1
km
km
+1
km
km
+1
km
km
+1
km
0
0001
0011
PWMDUTY
PWMAD3 ~ 0
T001CR<T00RUN>
256
Match detection
1
0
256
1
0
256
rs
1
0
256
Match detection
Match detection
Counter
clear
Overflow
Overflow
Overflow
Counter
clear
Counter
clear
Counter
clear
T00MOD<TFF0>
PWM0 pin output
When the double buffer is enabled (T01MOD<DBE1>=”1”)
km
(Duty pulse)
km
(Duty pulse)
km+1
(Duty pulse)
rs
(Duty pulse)
Additional pulse
Interrupt request
Содержание TLCS-870/C1 Series
Страница 1: ...8 Bit Microcontroller TLCS 870 C1 Series TMP89FM42 查询TMP89FM42供应商 捷多邦 专业PCB打样工厂 24小时加急出货 ...
Страница 3: ...Revision History Date Revision 2007 10 25 1 First Release 2007 11 3 2 Contents Revised ...
Страница 4: ......
Страница 14: ......
Страница 18: ...1 3 Block Diagram TMP89FM42 1 3 Block Diagram Figure 1 2 Block Diagram ...
Страница 22: ...1 4 Pin Names and Functions TMP89FM42 ...
Страница 60: ...2 CPU Core 2 5 Revision History TMP89FM42 ...
Страница 76: ...3 Interrupt Control Circuit 3 8 Revision History TMP89FM42 ...
Страница 86: ...4 External Interrupt control circuit 4 3 Function TMP89FM42 ...
Страница 102: ...7 Voltage Detection Circuit 7 5 Revision History TMP89FM42 ...
Страница 126: ...8 I O Ports 8 3 I O Port Registers TMP89FM42 Note 2 i 0 to 1 ...
Страница 136: ...8 I O Ports 8 5 Revision History TMP89FM42 ...
Страница 142: ...9 Special Function Registers 9 3 SFR3 0x0E40 to 0x0EFF TMP89FM42 ...
Страница 146: ...10 Low Power Consumption Function for Peripherals TMP89FM42 ...
Страница 149: ...TMP89FM42 11 3 Revision History Rev Description RA001 Deleted SLEEP2 description ...
Страница 150: ...11 Divider Output DVO 11 3 Revision History TMP89FM42 ...
Страница 220: ...15 Real Time Clock RTC 15 4 Real Time Clock Operation TMP89FM42 ...
Страница 250: ...16 Asynchronous Serial Interface UART 16 15 Revision History TMP89FM42 ...
Страница 302: ...18 Serial Bus Interface SBI 18 7 Revision History TMP89FM42 ...
Страница 336: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 Note 1 Make sure that you set the C register to 0x00 LD FLSCR2 0xD5 ...
Страница 338: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 ...
Страница 384: ...22 Serial PROM Mode 22 15 Revision History TMP89FM42 ...
Страница 388: ...24 Input Output Circuit 24 1 Control Pins TMP89FM42 ...
Страница 404: ...25 Electrical Characteristics 25 11 Revision History TMP89FM42 ...
Страница 406: ...26 Package Dimensions TMP89FM42 ...
Страница 408: ......