T87C5101 查看數據表（PDF） - Temic Semiconductors
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T87C5101 Datasheet PDF : 52 Pages
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T87C5101
T83C5101/02
4. SFR Mapping
The Special Function Registers (SFRs) of the T8xC5101/02 fall into the following categories:
• C51 core registers: ACC, B, DPH, DPL, PSW, SP, AUXR1
• I/O port registers: P1, P3, P4
• 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
• Interrupt system registers: IE, IP, IPH
• Others: AUXR, CKCON
No write must be made to reserved areas. Reading a reserved area will give indeterminate result.
Bit
address-
able
Table 1. All SFRs with their address and their reset value
Non Bit addressable
0/8
1/9
2/A
3/B
4/C
5/D
6/E
7/F
F8h
F0h
B
0000 0000
E8h
E0h
ACC
0000 0000
D8h
D0h
PSW
0000 0000
C8h
T2CON
0000 0000
T2MOD
XXXX XX00
RCAP2L
0000 0000
C0h
P4
XX11 1111
B8h
IP
XX00 000
SADEN
0000 0000
B0h
P3
1111 1111
A8h
IE
0X00 0000
SADDR
0000 0000
A0h
AUXR1
XXXX0XX0
98h
SCON
0000 0000
SBUF
XXXX XXXX
90h
P1
1111 1111
88h
TCON
0000 0000
TMOD
0000 0000
TL0
0000 0000
80h
SP
0000 0111
DPL
0000 0000
0/8
1/9
2/A
RCAP2H
0000 0000
TL1
0000 0000
DPH
0000 0000
3/B
TL2
0000 0000
TH0
0000 0000
4/C
TH2
0000 0000
TH1
0000 0000
5/D
FFh
F7h
EFh
E7h
DFh
D7h
CFh
C7h
BFh
IPH
XX00 0000
B7h
AFh
A7h
9Fh
AUXR
XXXXXX00
6/E
97h
CKCON
XXXX XXX0
8Fh
PCON
00X1 0000
87h
7/F
reserved
Rev. E - 29 February 2000
3
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