AT89C51CC03 Datasheet, PDF (12/195 Pages) ATMEL Corporation – Enhanced 8-bit MCU with CAN Controller and Flash Memory

SFR Mapping
The Special Function Registers (SFRs) of the AT89C51CC03 fall into the following
categories:
Mnemonic Add Name
7
6
5
4
3
2
1
0
ACC
E0h Accumulator
–
–
–
–
–
–
–
–
B
F0h B Register
–
–
–
–
–
–
–
–
PSW
D0h Program Status Word
CY
AC
F0
RS1
RS0
OV
F1
P
SP
81h Stack Pointer
–
–
–
–
–
–
–
–
Data Pointer Low
DPL
82h ^byte
–
–
–
–
–
–
–
–
LSB of DPTR
Data Pointer High
DPH
83h byte
–
–
–
–
–
–
–
–
MSB of DPTR
Mnemonic Add Name
P0
80h Port 0
P1
90h Port 1
P2
A0h Port 2
P3
B0h Port 3
P4
C0h Port 4 (x5)
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
P4.4 /
MOSI
P4.3 /
SCK
P4.2 /
MISO
P4.1 /
RxDC
P4.0 /
TxDC
Mnemonic Add Name
7
6
5
4
3
2
1
0
TH0
8Ch
Timer/Counter 0 High
byte
–
–
–
–
–
–
–
–
TL0
8Ah
Timer/Counter 0 Low
byte
–
–
–
–
–
–
–
–
TH1
8Dh
Timer/Counter 1 High
byte
–
–
–
–
–
–
–
–
TL1
8Bh
Timer/Counter 1 Low
byte
–
–
–
–
–
–
–
–
TH2
CDh
Timer/Counter 2 High
byte
–
–
–
–
–
–
–
–
TL2
CCh
Timer/Counter 2 Low
byte
–
–
–
–
–
–
–
–
TCON
88h
Timer/Counter 0 and
1 control
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
TMOD
89h
Timer/Counter 0 and
1 Modes
GATE1
C/T1#
M11
M01
GATE0
C/T0#
M10
M00
12 AT89C51CC03
4182I–CAN–06/05