TS80C54X2/C58X2
TS87C54X2/C58X2
4. SFR Mapping
The Special Function Registers (SFRs) of the TS80C54/58X2 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
•
HDW Watchdog Timer Reset: WDTRST, WDTPRG
•
Interrupt system registers: IE, IP, IPH
•
Others: AUXR, CKCON
Table 2. All SFRs with their address and their reset value
Bit
address-
able
0/8
1/9
2/A
3/B
Non Bit addressable
4/C
5/D
6/E
7/F
F8h
F0h
E8h
E0h
D8h
D0h
C8h
C0h
B8h
B0h
A8h
A0h
98h
90h
88h
80h
IP
XX00 0000
P3
1111 1111
IE
0X00 0000
P2
1111 1111
SCON
0000 0000
P1
1111 1111
TCON
0000 0000
P0
1111 1111
0/8
TMOD
0000 0000
SP
0000 0111
1/9
TL0
0000 0000
DPL
0000 0000
2/A
TL1
0000 0000
DPH
0000 0000
3/B
4/C
5/D
6/E
TH0
0000 0000
TH1
0000 0000
AUXR
XXXX XX00
CKCON
XXXX XXX0
PCON
00X1 0000
7/F
SBUF
XXXX XXXX
SADDR
0000 0000
AUXR1
XXXX 0XX0
WDTRST
XXXX XXXX
WDTPRG
XXXX X000
SADEN
0000 0000
IPH
XX00 0000
PSW
0000 0000
T2CON
0000 0000
T2MOD
XXXX XX00
RCAP2L
0000 0000
RCAP2H
0000 0000
TL2
0000 0000
TH2
0000 0000
ACC
0000 0000
B
0000 0000
FFh
F7h
EFh
E7h
DFh
D7h
CFh
C7h
BFh
B7h
AFh
A7h
9Fh
97h
8Fh
87h
reserved
Rev. B - Aug. 31, 1999
3
TEMIC [ TEMIC SEMICONDUCTORS ]
