參數(shù)資料
型號: W78ERD2A40PN
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 45/72頁
文件大?。?/td> 606K
代理商: W78ERD2A40PN
W78ERD2
Publication Release Date: April 20, 2005
- 45 -
Revision A4
The CCON SFR contains the run control bit for the PCA and the flags for the PCA timer (CF) and each
module to run the PCA the CR bit (CCON.6) must be set by software. The PCA is turned off by
clearing this bit. The CF bit (CCON.7) is set when the PCA Counter overflows and an interrupt will be
generated if the ECF bit in the CMOD register is set. The CF bit can only be cleared by software.
CCON.0~CCON.4 are the flags for the modules and are set by hardware when either a match or a
capture occurs. These flags also can only be cleared by software.
CCAPMn
CCAPM0(DAH) , CCAPM1(DBH) , CCAPM2(DCH) , CCAPM3(DDH), CCAPM4(DEH)
BIT
NAME
FUNCTION
7
-
Reserved
6
ECOMn
Enable Comparator. ECOMn = 1 enables the comparator function
5
CAPPn
Capture Positive. CAPPn = 1 enables positive edge capture.
4
CAPNn
Capture Negative. CAPNn = 1 enables negative edge capture.
3
MATn
Match. When MATn = 1 a match of the PCA counter with this module’s
compare/capture register causes the CCFn bit in CCON to be set, flagging
an interrupt.
2
TOGn
Toggle. When TOGn = 1 a match of the PCA counter with this module’s
compare/capture register causes the CEXn bit to toggle.
1
PWMn
Pulse Width Modulation Mode. PWMn = 1 enables the CEXn bit to be used
as a pulse width modulated output.
0
ECCFn
Enable CCF interrupt. Enables compare/capture flag CCFn in the CCON
register to generate an interrupt.
MODULE FUNCTION
ECOMN
CAPPN CAPNN
MATN
TOGN
PWMN ECCFN
No operation
0
0
0
0
0
0
0
16-bit capture by a positive edge
trigger on CEXn
X
1
0
0
0
0
X
16-bit capture by a negative trigger
on CEXn
X
0
1
0
0
0
X
16-bit capture by a transition on
CEXn
X
1
1
0
0
0
X
16-bit Software Timer
1
0
0
1
0
0
X
16-bit High Speed Output
1
0
0
1
1
0
X
8-bit PWM
1
0
0
0
0
1
0
Watchdog Timer (only in module4)
1
0
0
1
X
0
X
PCA Module Modes (CCAPMn Register)
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