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Microcontrollers, Microprocessors & Quartzes
Embedded microcontroller VQFP 44 (10x10) 8-Bit 40 MHz I/O number 32
31
32
33
34
35
36
37
38
39
40
32
AT89C51RB2/RC2
4180E–
805
1–10/06
Figu
re 1
1
.
PCA Timer/
Counter
CIDL
CPS1
C
PS0
ECF
It
CH
CL
16
-
bit up
Co
unte
r
To PC
A
Mo
dules
F
CLK PERIPH
/6
F
CLK PERIPH
/2
T0 O
VF
P1.2
Idle
CMOD
0xD9
WDTE
CF
CR
CCO
N
0xD
8
CCF
4
CCF
3
CCF
2
CC
F1
CCF0
overf
low
1
...
...
30
31
32
33
34
...
...
127
