W77LE58_07 Datasheet, PDF (9/82 Pages) Winbond – 8-BIT MICROCONTROLLER

W77LE58/W77L058A
Table 1. Special Function Register Location Table
F8
EIP
F0
B
E8
EIE
E0
ACC
D8 WDCON
D0
PSW
C8 T2CON T2MOD RCAP2L RCAP2H TL2
C0 SCON1 SBUF1 ROMMAP
PMR
B8
IP
SADEN SADEN1
B0
P3
A8
IE
SADDR SADDR1
A0
P2
98 SCON0 SBUF
90
P1
EXIF
88 TCON TMOD
TL0
TL1
TH0
80
P0
SP
DPL
DPH
DPL1
Note: The SFRs in the column with dark borders are bit-addressable.
TH2
STATUS
TA
P4
TH1
DPH1
CKCON
DPS
PCON
A brief description of the SFRs now follows.
Port 0
Bit:
7
6
5
4
3
2
1
0
P0.7 P0.6 P0.5 P0.4 P0.3 P0.2 P0.1 P0.0
Mnemonic: P0
Address: 80h
Port 0 is an open-drain bi-directional I/O port. This port also provides a multiplexed low order
address/data bus during accesses to external memory.
Stack Pointer
Bit:
7
6
5
4
3
2
1
0
SP.7 SP.6 SP.5 SP.4 SP.3 SP.2 SP.1 SP.0
Mnemonic: SP
Address: 81h
The Stack Pointer stores the Scratchpad RAM address where the stack begins. In other words, it
always points to the top of the stack.
Publication Release Date: February 1, 2007
-9-
Revision A7