参数资料
型号: ST72121J4T1/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44
封装: PLASTIC, TQFP-44
文件页数: 26/87页
文件大小: 1365K
代理商: ST72121J4T1/XXX
32/87
ST72121
16-BIT TIMER (Cont’d)
Figure 20. Timer Block Diagram
MCU-PERIPHERAL INTERFACE
COUNTER
ALTERNATE
REGISTER
OUTPUT
COMPARE
REGISTER
OUTPUT COMPARE
EDGE DETECT
OVERFLOW
DETECT
CIRCUIT
1/2
1/4
1/8
8-bit
buffer
ST7 INTERNAL BUS
LATCH1
OCMP1
ICAP1
EXTCLK
fCPU
TIMER INTERRUPT
ICF2
ICF1
0
OCF2
OCF1TOF
PWM
OC1E
EXEDG
IEDG2
CC0
CC1
OC2E OPM
FOLV2
ICIE
OLVL1
IEDG1
OLVL2
FOLV1
OCIE TOIE
ICAP2
LATCH2
OCMP2
8
8low
16
8 high
16
CR1
CR2
SR
6
16
8
h
igh
low
h
igh
h
igh
h
igh
low
EXEDG
TIMER INTERNAL BUS
CIRCUIT1
EDGE DETECT
CIRCUIT2
CIRCUIT
1
OUTPUT
COMPARE
REGISTER
2
INPUT
CAPTURE
REGISTER
1
INPUT
CAPTURE
REGISTER
2
CC1 CC0
16 BIT
FREE RUNNING
COUNTER
32
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