at89c51ac3-s3sim ATMEL Corporation, at89c51ac3-s3sim Datasheet - Page 95
at89c51ac3-s3sim
Manufacturer Part Number
at89c51ac3-s3sim
Description
At89c51ac3 Enhanced 8-bit Microcontroller With 64kb Flash Memory
Manufacturer
ATMEL Corporation
Datasheet
1.AT89C51AC3-S3SIM.pdf
(140 pages)
- Current page: 95 of 140
- Download datasheet (2Mb)
Figure 53. PCA Timer/Counter
PCA Modules
4383D–8051–02/08
Idle
FPca/2
T0 OVF
FPca/6
P1.2
The CMOD register includes three additional bits associated with the PCA.
•
•
•
The CCON register contains the run control bit for the PCA and the flags for the PCA
timer and each module.
•
•
•
Each one of the five compare/capture modules has six possible functions. It can
perform:
•
•
•
•
•
•
In addition module 4 can be used as a WatchDog Timer.
CIDL
CF
The CIDL bit which allows the PCA to stop during idle mode.
The WDTE bit which enables or disables the WatchDog function on module 4.
The ECF bit which when set causes an interrupt and the PCA overflow flag CF in
CCON register to be set when the PCA timer overflows.
The CR bit must be set to run the PCA. The PCA is shut off by clearing this bit.
The CF bit is set when the PCA counter overflows and an interrupt will be generated
if the ECF bit in CMOD register is set. The CF bit can only be cleared by software.
The CCF0:4 bits are the flags for the modules (CCF0 for module0...) and are set by
hardware when either a match or a capture occurs. These flags also can be cleared
by software.
16-bit Capture, positive-edge triggered
16-bit Capture, negative-edge triggered
16-bit Capture, both positive and negative-edge triggered
16-bit Software Timer
16-bit High Speed Output
8-bit Pulse Width Modulator.
WDTE
CR
CCF4 CCF3 CCF2 CCF1 CCF0
CPS1 CPS0
CH
16 bit up counter
ECF
CL
CMOD
0xD9
CCON
0xD8
overflow
To PCA
modules
It
95
Related parts for at89c51ac3-s3sim
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 40DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 40DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
8-bit microcontroller with 4K bytes flash, 5V, 20MHz
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit microcontroller with 4K bytes flash, 5V, 20MHz
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 4K 44TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 4K 44PLCC
Manufacturer:
Atmel
Datasheet: