80C652 Datasheet, PDF (8/25 Pages) NXP Semiconductors – CMOS single-chip 8-bit microcontrollers

Phlips Semiconductors
CMOS single-chip 8-bit microcontrollers
Product specification
80C652/83C652
Table 1. 8XC652/654 Special Function Registers
SYMBOL DESCRIPTION
ACC*
Accumulator
DIRECT
BIT ADDRESS, SYMBOL, OR ALTERNATIVE PORT FUNCTION
ADDRESS MSB
LSB
E0H
E7
E6
E5
E4
E3
E2
E1
E0
RESET
VALUE
00H
B*
B register
F0H
F7
F6
F5
F4
F3
F2
F1
F0 00H
DPTR: Data pointer
(2 bytes)
DPH
Data pointer high
83H
00H
DPL
Data pointer low
82H
00H
AF
AE
AD
AC
AB
AA
A9
A8
IE*#
Interrupt enable
A8H
EA
ES1
ES0
ET1
EX1
ET0
EX0 0x000000B
BF
BE
BD
BC
BB
BA
B9
B8
IP*#
Interrupt priority
B8H
–
PS1
PS0
PT1
PX1
PT0
PX0 xx000000B
87
86
85
84
83
82
81
80
P0*
Port 0
80H
AD7 AD6 AD5
AD4
AD3
AD2
AD1
AD0 FFH
97
96
95
94
93
92
91
90
P1*#
Port 1
90H
SDA SCL
FFH
A7
A6
A5
A4
A3
A2
A1
A0
P2*
Port 2
A0H
A15 A14
A13
A12
A11
A10
A9
A8 FFH
B7
B6
B5
B4
B3
B2
B1
B0
P3*
Port 3
B0H
RD WR
T1
T0
INT1 INT0 TXD RXD FFH
PCON
Power control
87H SMOD –
–
–
GF1
GF0
PD
IDL 0xxx0000B
9F
9E
9D
9C
9B
9A
99
98
S0CON*# Serial 0 port control
98H
SM0 SM1 SM2 REN
TB8
RB8
TI
RI 00H
S0BUF# Serial 0 data buffer
99H
xxxxxxxxB
D7
D6
D5
D4
D3
D2
D1
D0
PSW*
Program status word
D0H
CY
AC
F0
RS1
RS0
OV
F1
P 00H
S1DAT# Serial 1 data
DAH
00H
SP
Stack pointer
81H
07H
S1ADR# Serial 1 address
DBH
 SLAVE ADDRESS  ^{GC 00H}
S1STA# Serial 1 status
D9H
SC4 SC3 SC2
DF
DE
DD
S1CON*# Serial 1 control
D8H
CR2 ENS1 STA
8F
8E
8D
TCON* Timer control
88H
TF1 TR1 TF0
TH1
Timer high 1
8DH
TH0
Timer high 0
8CH
TL1
Timer low 1
8BH
TL0
Timer low 0
8AH
TMOD
Timer mode
89H
GATE C/T
M1
* SFRs are bit addressable.
# SFRs are modified from or added to the 80C51 SFRs.
SC1
SC0
0
DC
DB
DA
STO
SI
AA
8C
8B
8A
TR0
IE1
IT1
M0 GATE C/T
0
D9
CR1
89
IE0
M1
0
D8
CR0
88
IT0
M0
F8H
00000000B
00H
00H
00H
00H
00H
00H
1996 Aug 15
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