P89C535 查看數據表（PDF） - Philips Electronics
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P89C535 Datasheet PDF : 35 Pages
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Philips Semiconductors
CMOS single-chip 8-bit microcontrollers
with FLASH program memory
Preliminary specification
89C535/89C536/89C538
Table 1. Special Function Registers
SYMBOL
DESCRIPTION
DIRECT
BIT ADDRESS, SYMBOL, OR ALTERNATIVE PORT FUNCTION
ADDRESS MSB
LSB
ACC*
Accumulator
E0H
E7
E6
E5
E4
E3
E2
E1
E0
B*
B register
F0H
F7
F6
F5
F4
F3
F2
F1
F0
DPTR:
Data Pointer (2 bytes)
DPH
Data Pointer High
83H
DPL
Data Pointer Low
82H
AF
AE
AD
AC
AB
AA
A9
A8
IE*
Interrupt Enable
A8H
EA
–
ET2
ES
ET1 EX1 ET0 EX0
BF
BE
BD
BC
BB
BA
B9
B8
IP*
Interrupt Priority
B8H
–
–
PT2
PS
PT1 PX1 PT0 PX0
87
86
85
84
83
82
81
80
P0*
Port 0
80H
AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0
97
96
95
94
93
92
91
90
P1*
Port 1
90H
–
–
–
–
–
– T2EX T2
A7
A6
A5
A4
A3
A2
A1
A0
P2*
Port 2
A0H AD15 AD14 AD13 AD12 AD11 AD10 AD9 AD8
B7
B6
B5
B4
B3
B2
B1
B0
P3*
Port 3
B0H
RD
WR
T1
T0
INT1 INT0 TxD RxD
RESET
VALUE
00H
00H
00H
00H
00H
x0000000B
FFH
FFH
FFH
FFH
PCON# Power Control
87H SMOD
D7
PSW*
Program Status Word
D0H
CY
RACAP2H# Timer 2 Capture High
RACAP2L# Timer 2 Capture Low
CBH
CAH
SBUF
Serial Data Buffer
99H
9F
SCON*
Serial Control
98H
SM0
SP
Stack Pointer
81H
8F
TCON*
Timer Control
88H
TF1
CF
T2CON*
TH0
TH1
TH2#
TL0
TL1
TL2#
Timer 2 Control
Timer High 0
Timer High 1
Timer High 2
Timer Low 0
Timer Low 1
Timer Low 2
C8H
TF2
8CH
8DH
CDH
8AH
8BH
CCH
TMOD
Timer Mode
89H GATE
* SFRs are bit addressable.
# SFRs are modified from or added to the 80C51 SFRs.
– Reserved bits.
–
D6
AC
9E
SM1
8E
TR1
CE
EXF2
C/T
–
–
GF1 GF0
D5
D4
D3
D2
F0
RS1
RS0
OV
9D
9C
9B
9A
SM2 REN TB8 RB8
8D
8C
8B
8A
TF0
TR0
IE1
IT1
CD
CC
CB
CA
RCLK TCLK EXEN2 TR2
M1
M0 GATE C/T
PD
D1
–
99
TI
89
IE0
C9
C/T2
M1
IDL 0xxxx000B
D0
P
00H
00H
00H
xxxxxxxxB
98
RI 00H
07H
88
IT0 00H
C8
CP/RL2 00H
00H
00H
00H
00H
00H
00H
M0 00H
1997 Jun 05
6
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