參數(shù)資料
型號: T89C51RC2-RLTCL
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-bit Microcontroller with 16 Kbytes/ 32 Kbytes FLASH
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44
封裝: 1.40 MM HEIGHT, VQFP-44
文件頁數(shù): 128/170頁
文件大?。?/td> 1927K
代理商: T89C51RC2-RLTCL
128
A/T89C51CC01
4129L–CAN–08/05
PCA Registers
Table 100.
CMOD Register
CMOD (S:D9h)
PCA Counter Mode Register
Reset Value = 00XX X000b
7
6
5
4
3
2
1
0
CIDL
WDTE
-
-
-
CPS1
CPS0
ECF
Bit
Number
Bit
Mnemonic
Description
7
CIDL
PCA Counter Idle Control bit
Clear to let the PCA run during Idle mode.
Set to stop the PCA when Idle mode is invoked.
6
WDTE
Watchdog Timer Enable
Clear to disable Watchdog Timer function on PCA Module 4,
Set to enable it.
5
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
3
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
2-1
CPS1:0
EWC Count Pulse Select bits
CPS1 CPS0
0
0
0
1
1
0
1
1
Clock source
Internal Clock, FPca/6
Internal Clock, FPca/2
Timer 0 overflow
External clock at ECI/P1.2 pin (Max. Rate = FPca/4)
0
ECF
Enable PCA Counter Overflow Interrupt bit
Clear to disable CF bit in CCON register to generate an interrupt.
Set to enable CF bit in CCON register to generate an interrupt.
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