87C528 Philips Semiconductors, 87C528 Datasheet - Page 7

• Manufacturer Part Number: 87C528
• Description: 80C51 8-bit microcontrollers 16K/32K/ 512 OTP/ I2C/ watchdog timer
• Manufacturer: Philips Semiconductors

*
# SFRs are modified from or added to the 80C51 SFRs.
Philips Semiconductors
Table 1.
1999 Jul 23
ACC*
B*
DPTR:
IE*#
IP*#
P0*
P1*
P2*
P3*
PCON
PSW*
RCAP2H#
RCAP2L#
SBUF
SCON*
S1BIT#
S1INT#
S1SCS*#
SP
TCON*
T2CON*#
TH0
TH1
TH2#
TL0
TL1
TL2#
T3#
TMOD
WDCON#
SYMBOL
DPH
DPL
80C51 8-bit microcontrollers
16K/32K, 512 OTP, I
SFRs are bit addressable.
Accumulator
B register
Data pointer
Interrupt enable
Interrupt priority
Port 0
Port 1
Port 2
Port 3
Power control
Program status word
Capture high
Capture low
Serial data buffer
Serial controller
Serial I
Serial I
Serial I
Stack pointer
Timer control
Timer 2 control
Timer high 0
Timer high 1
Timer high 2
Timer low 0
Timer low 1
Timer low 2
Watchdog timer
Timer mode
Watchdog control
8XC524/8XC528 Special Function Registers
Data pointer high
Data pointer low
DESCRIPTION
2
2
2
C data
C interrupt
C control
(2 bytes)
:
ADDRESS
2
DIRECT
D9H/RD
D8H/RD
C, watchdog timer
CBH
CAH
DAH
CDH
CCH
D0H
C8H
8CH
8DH
E0H
F0H
83H
82H
A8H
B8H
80H
90H
A0H
B0H
87H
99H
98H
81H
88H
8AH
8BH
FFH
89H
A5H
WR
WR
MSB
SMOD
GATE
SDA
SM0
AD7
SD0
SD0
A15
TF1
TF2
SDI
INT
SDI
RD
AF
EA
BF
D7
CY
DF
CF
E7
F7
87
97
A7
B7
9F
8F
–
BIT ADDRESS, SYMBOL, OR ALTERNATIVE PORT FUNCTION
EXF2
SM1
ES1
PS1
AD6
SEL
SC0
TR1
A14
WR
SCI
C/T
AC
DE
CE
E6
AE
BE
A6
B6
D6
9E
8E
F6
86
96
X
X
–
0
RCLK
7
SM2
CLH
CLH
AD5
ET2
PT2
A13
TF0
AD
BD
DD
CD
M1
E5
A5
B5
D5
9D
8D
F5
85
95
T1
F0
–
–
0
X
X
TCLK
REN
ES0
PS0
AD4
RS1
TR0
A12
AC
BC
DC
CC
M0
E4
A4
B4
D4
9C
BB
8C
F4
84
94
T0
–
–
0
X
X
X
EXEN2
GATE
INT1
AD3
GF1
RS0
RBF
ET1
PT1
A11
TB8
DB
IE1
CB
E3
AB
BB
A3
B3
D3
9B
8B
F3
83
93
X
X
X
–
0
INT0
WBF
EX1
PX1
AD2
GF0
RB8
TR2
A10
C/T
AA
BA
OV
DA
IT1
CA
E2
F2
A2
B2
D2
9A
8A
82
92
–
0
X
X
X
87C524/87C528
T2EX
C/T2
AD1
STR
STR
ET0
PT0
TxD
IE0
PD
M1
E1
F1
A9
B9
A1
A9
B1
D1
F1
D9
C9
81
91
99
89
TI
X
X
0
Product specification
CP/RL2
ENS
ENS
EX0
PX0
AD0
RxD
IDL
IT0
M0
E0
B8
A0
A8
B0
D0
D8
C8
F0
A8
80
90
T2
98
88
LSB
RI
P
X
X
0
00H
00H
00H
00H
00H
x0000000B
FFH
FFH
FFH
FFH
0xxx0000B
00H
00H
00H
xxxxxxxxB
00H
x0000000B
0xxxxxxxB
0xxxxxxxB
xxxx0000B
00xxxx00B
07H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
A5H
RESET
VALUE