at89c51rd2-smsum ATMEL Corporation, at89c51rd2-smsum Datasheet - Page 36
at89c51rd2-smsum
Manufacturer Part Number
at89c51rd2-smsum
Description
8-bit Flash Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.AT89C51RD2-SMSUM.pdf
(137 pages)
- Current page: 36 of 137
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Figure 13-1. PCA Timer/Counter
36
AT89C51RD2/ED2
F
F
Idle
CLK PERIPH
CLK PERIPH
T0 OVF
P1.2
/6
/2
• The ECF bit which when set causes an interrupt and the PCA overflow flag CF (in the CCON
SFR) to be set when the PCA timer overflows.
CIDL
CF
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
4235J–8051–01/08
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