TS87C51RD2 ATMEL Corporation, TS87C51RD2 Datasheet - Page 30
TS87C51RD2
Manufacturer Part Number
TS87C51RD2
Description
(TS8xC51Rx2) High Performance 8-bit Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.TS87C51RD2.pdf
(85 pages)
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Figure 6-6.
6.3.2
30
AT/TS8xC51Rx2
16-bit Software Timer/ Compare Mode
C e x . n
PCA Capture Mode
The PCA modules can be used as software timers by setting both the ECOM and MAT bits in
the modules CCAPMn register. The PCA timer will be compared to the module's capture regis-
ters and when a match occurs an interrupt will occur if the CCFn (CCON SFR) and the ECCFn
(CCAPMn SFR) bits for the module are both set (See Figure 6-7).
CF
ECOMn
CR
CAPPn
CAPNn MATn TOGn PWMn ECCFn
CCF4 CCF3 CCF2 CCF1 CCF0
Capture
CCAPMn, n= 0 to 4
0xDA to 0xDE
CCON
0xD8
CCAPnH
PCA Counter/Timer
CH
CCAPnL
CL
PCA IT
4188E–8051–08/06