w79e532 Winbond Electronics Corp America, w79e532 Datasheet - Page 9

• Manufacturer Part Number: w79e532
• Description: 8-bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

Special Function Registers
The W79E(L)532 uses Special Function Registers (SFRs) to control and monitor peripherals and their
Modes.
The SFRs reside in the register locations 80-FFh and are accessed by direct addressing only. Some
of the SFRs are bit addressable. This is very useful in cases where one wishes to modify a particular
bit without changing the others. The SFRs that are bit addressable are those whose addresses end in
0 or 8. The W79E(L)532 contains all the SFRs present in the standard 8052. However, some
additional SFRs have been added. In some cases unused bits in the original 8052 have been given
new functions. The list of SFRs is as follows. The table is condensed with eight locations per row.
Empty locations indicate that there are no registers at these addresses. When a bit or register is not
implemented, it will read high.
Table 1. Special Function Register Location Table
Note: The SFRs in the column with dark borders are bit-addressable.
F8
F0
E8
E0
D8
D0
C8
C0
B8
B0
A8
A0
98
90
88
80
EIP
B
EIE
ACC
WDCON
PSW
T2CON
IP
P3
IE
P2
SCON0
P1
TCON
P0
PWMP
T2MOD
SADEN
SADDR
XRAMAH
SBUF
TMOD
SP
PWM0
RCAP2L
P4CSIN
P42AL
P4CONA
TL0
DPL
RCAP2H
P42AH
TL1
PWM1
PWM5
ROMCON
P4CONB
DPH
- 9 -
PWMCON1 PWM2
TL2
PMR
SFRAL
P43AL
P40AL
TH0
Publication Release Date: November 21, 2005
W79E532/W79L532
TH2
STATUS
SFRAH
P4
P43AH
P40AH
TH1
PWM3
PWMCON2 PWM4
SFDFD
P41AL
CKCON
Revision A5
TA
SFRCN
CHPCON
P41AH
PCON