83C752 Datasheet, PDF (9/24 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 2K/64 OTP/ROM, 5 channel 8 bit A/D, I2C, PWM, low pin count

Philips Semiconductors
80C51 8-bit microcontroller family
2K/64 OTP/ROM, 5 channel 8 bit A/D, I²C, PWM, low pin count
Product specification
83C752/87C752
Table 2. 8XC752 Special Function Registers
SYMBOL
DESCRIPTION
DIRECT
BIT ADDRESS, SYMBOL, OR ALTERNATIVE PORT FUNCTION
ADDRESS MSB
LSB
RESET
VALUE
ACC*
Accumulator
E0H
E7
E6
E5
E4
E3
E2
E1
E0 00H
ADAT# A/D result
84H
00H
ADCON# A/D control
A0H
–
– ENADC ADCI ADCS AADR2 AADR1 AADR0 C0H
B*
B register
F0H
F7
F6
F5
F4
F3
F2
F1
F0 00H
DPTR:
Data pointer
(2 bytes)
DPL
Data pointer low
82H
00H
DPH
Data pointer high
83H
00H
I²CFG*# I²C configuration
DF
DE
DD
DC
DB
D8H/RD ^{SLAVEN MASTRQ}
0
TIRUN
–
DA
D9
D8
–
CT1
CT0 0000xx00B
WR
SLAVEN MASTRQ _{CLRTI TIRUN}
–
–
CT1
CT0
I²CON*# I²C control
9F
9E
9D
9C
98H/RD RDAT ATN DRDY ARL
9B
STR
9A
STP
99
MASTER
98
– 81H
I²DAT# I²C data
WR
99H/RD
CXA
RDAT
IDLE
0
CDR
0
CARL
0
CSTR
0
CSTP
0
XSTR
0
XSTP
0 80H
WR
XDAT X
X
X
X
X
X
X
I²STA*# I²C status
FF
FE
FD
FC
FB
FA
F9
F8
F8H
–
IDLE XDATA XACTV ^{MAKSTR MAKSTP} XSTR XSTP x0100000B
AF
AE
AD
AC
AB
AA
A9
A8
IE*#
Interrupt enable
ADH
EA EAD ETI
ES EPWM EX1
ET0
EX0 00H
–
–
–
84
83
82
81
80 xxx11111B
P0*#
Port 0
80H
–
–
–
PWM0
–
–
SDA SCL
97
96
95
94
93
92
91
90 FFH
P1*#
Port 1
90H
T0 INT1 INT0 ADC4 ADC3 ADC2 ADC1 ADC0
P3*
Port 3
B0H
B7
B6
B5
B4
B3
B2
B1
B0 FFH
PCON# Power control
87H
–
–
–
–
–
–
PD
IDL xxxx0000B
D7
D6
D5
D4
D3
D2
D1
D0
PSW*
Program status word
D0H
CY
AC
F0
RS1
RS0
OV
–
P 00H
PWCM# PWM compare
8EH
xxxxxxxxB
PWENA# PWM enable
FEH
–
–
–
–
–
–
–
PWE FEH
PWMP# PWM prescaler
8FH
00H
RTL#
Timer low reload
8BH
00H
RTH#
Timer high reload
8DH
00H
SP
Stack pointer
81H
07H
TL#
Timer low
8AH
00H
TH#
Timer high
8CH
00H
8F
8E
8D
8C
8B
8A
89
88
TCON*# Timer control
88H
GATE C/T
TF
TR
IE0
IT0
IE1
IT1 00H
* SFRs are bit addressable.
# SFRs are modified from or added to the 80C51 SFRs.
1998 May 01
9