ST72E121J4D0 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

ST72E121J4D0

8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS

STMicroelectronics 

ST72E121 ST72T121

16-BIT TIMER (Cont’d)

Figure 21. Timer Block Diagram

fCPU

ST7 INTERNAL BUS

MCU-PERIPHERAL INTERFACE

8 high

EXEDG

8 low

8-bit

buffer

16

1/2

1/4

1/8

CC1 CC0

16 BIT

FREE RUNNING

COUNTER

COUNTER

ALTERNATE

REGIST ER

16

88

88

88

88

OUTPUT

COMPARE

REGIS TER

1

OUTPUT

COMPARE

REGIST ER

2

INPUT

CAPTURE

REGIS TER

1

INPUT

CAPTURE

REGISTER

2

16

16

TIMER INTERNAL BUS

16

16

EXTCLK

OVERFLOW

DETECT

CIRCUIT

OUTPUT COMPARE

CIRCUIT

6

EDGE DETECT

CIRCUIT1

EDGE DETECT

CIRCUIT2

ICF1 OCF1 TOF ICF2 OCF2 0 0 0

SR

LATCH1

LATCH2

ICAP1

ICAP2

OCMP1

OCMP2

ICIE OCIE TOIE FOLV2 FOLV1OLVL2 IEDG1 OLVL1

CR1

OC1E OC2E OPM PWM CC1 CC0 IEDG2 EXEDG

CR2

TIMER INTERRUPT

34/92

34

Share Link: