TS80C52X2
4. SFR Mapping
The Special Function Registers (SFRs) of the TS80C52X2 fall into the following categories:
•
•
•
•
•
•
•
•
C51 core registers: ACC, B, DPH, DPL, PSW, SP, AUXR1
I/O port registers: P0, P1, P2, P3
Timer registers: T2CON, T2MOD, TCON, TH0, TH1, TH2, TMOD, TL0, TL1, TL2, RCAP2L, RCAP2H
Serial I/O port registers: SADDR, SADEN, SBUF, SCON
Power and clock control registers: PCON
PCA registers: CL, CH, CCAPiL, CCAPiH, CCON, CMOD, CCAPMi
Interrupt system registers: IE, IP, IPH
Others: AUXR, CKCON
Table 2. All SFRs with their address and their reset value
Bit
address-
able
Non Bit addressable
0/8
1/9
2/A
3/B
4/C
5/D
6/E
7/F
F8h
F0h
FFh
F7h
B
0000 0000
E8h
E0h
EFh
E7h
ACC
0000 0000
D8h
D0h
DFh
D7h
PSW
0000 0000
T2CON
0000 0000
T2MOD
XXXX XX00
RCAP2L
0000 0000
RCAP2H
0000 0000
TL2
0000 0000
TH2
0000 0000
C8h
C0h
B8h
B0h
A8h
A0h
98h
90h
88h
80h
CFh
C7h
BFh
B7h
AFh
A7h
9Fh
97h
8Fh
87h
IP
SADEN
0000 0000
XX00 0000
P3
IPH
XX00 0000
1111 1111
IE
SADDR
0000 0000
0X00 0000
P2
AUXR1
XXXX 0XX0
1111 1111
SCON
0000 0000
SBUF
XXXX XXXX
P1
1111 1111
TCON
0000 0000
TMOD
0000 0000
TL0
0000 0000
TL1
0000 0000
TH0
0000 0000
TH1
0000 0000
AUXR
XXXXXX00
CKCON
XXXX XXX0
P0
SP
0000 0111
DPL
0000 0000
DPH
0000 0000
PCON
00X1 0000
1111 1111
0/8
1/9
2/A
3/B
4/C
5/D
6/E
7/F
reserved
Rev. B - Jan. 25, 1999
3
Preliminary
TEMIC [ TEMIC SEMICONDUCTORS ]
