参数资料
型号: ST72621J2T1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20
封装: 0.300 INCH, PLASTIC, SO-20
文件页数: 83/136页
文件大小: 2475K
代理商: ST72621J2T1
ST7262
50/136
PWM AUTO-RELOAD TIMER (Cont’d)
INPUT CAPTURE
CONTROL / STATUS REGISTER (ARTICCSR)
Read/Write (except bits 1:0 read and clear)
Reset Value: 0000 0000 (00h)
Bit 7:6 = Reserved, always read as 0.
Bit 5:4 = CS[2:1] Capture Sensitivity
These bits are set and cleared by software. They
determine the trigger event polarity on the corre-
sponding input capture channel.
0: Falling edge triggers capture on channel x.
1: Rising edge triggers capture on channel x.
Bit 3:2 = CIE[2:1] Capture Interrupt Enable
These bits are set and cleared by software. They
enable or disable the Input capture channel inter-
rupts independently.
0: Input capture channel x interrupt disabled.
1: Input capture channel x interrupt enabled.
Bit 1:0 = CF[2:1] Capture Flag
These bits are set by hardware when a capture oc-
curs and cleared by hardware when software
reads the ARTICCSR register. Each CFx bit indi-
cates that an input capture x has occurred.
0: No input capture on channel x.
1: An input capture has occured on channel x.
INPUT CAPTURE REGISTERS (ARTICRx)
Read only
Reset Value: 0000 0000 (00h)
Bit 7:0 = IC[7:0] Input Capture Data
These read only bits are set and cleared by hard-
ware. An ARTICRx register contains the 8-bit
auto-reload counter value transferred by the input
capture channel x event.
70
0
CS2
CS1
CIE2
CIE1
CF2
CF1
70
IC7
IC6
IC5
IC4
IC3
IC2
IC1
IC0
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