p89c669 NXP Semiconductors, p89c669 Datasheet - Page 15

• Manufacturer Part Number: p89c669
• Description: P89c669 80c51 8-bit Microcontroller Family With Extended Memory; 96 Kb Flash With 2 Kb Ram
• Manufacturer: NXP Semiconductors

Table 5:
Name
P0
P1
P2
P3
PCON
PSW
RCAP2H
RCAP2L
S0CON
S0BUF
S0ADDR
S0ADEN
S0STAT
S1CON
S1BUF
S1ADDR
[1]
[1]
[1]
[1]
[1]
[2]
[2]
[1]
[1] [2]
[2]
[2]
[2]
[2]
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx
Special function registers
Description
Port 0
Port 1
Port 2
Port 3
Power Control Register
Program Status Word
Timer2 Capture HIGH
Timer2 Capture LOW
Serial Port 0 Control
Serial Port 0 Data Buffer
Register
Serial Port 0 Address Register
Serial Port 0 Address Enable
Serial Port 0 Status
Serial Port 1 Control
Serial Port 1 Data buffer Register 81H
Serial Port 1 Address Register
…continued
Bit address 87
Bit address 97
Bit address A7
Bit address B7
Bit address D7
Bit address 9F
Bit address 87
SFR
addr.
80H
90H
A0H
B0H
87H
D0H
CBH
CAH
98H
99H
A9H
B9H
8CH
80H
82H
[3]
[3]
[3]
[3]
Bit functions and addresses
MSB
AD7
CEX4
AD15
RD
SMOD1
CY
SM0_0/
FE_0
DBMOD_0 INTLO_0
SM0_1/
FE_1
[3]
AD6
CEX3
AD14/
AD22
WR
SMOD0
AC
SM1_0
86
SM1_1
86
96
A6
B6
D6
9E
[3]
85
AD5
95
CEX2/
SPICLK
A5
ADA13/
AD21
B5
T1
-
D5
F0
9D
SM2_0
CIDIS_0
85
SM2_1
[3]
84
AD4
94
CEX1/
MOSI
A4
AD12/
AD20
B4
T0
POF
D4
RS1
9C
REN_0
DBISEL_
0
84
REN_1
[3]
83
AD3
93
CEX0
A3
AD11/
AD19
B3
INT1
GF1
D3
RS0
9B
TB8_0
FE_0
83
TB8_1
[3]
82
AD2
92
ECI
A2
AD10/
AD18
B2
INT0
GF0
D2
OV
9A
RB8_0
BR_0
82
RB8_1
[3]
81
AD1
91
T2EX
A1
AD9/
AD17
B1
TxD0
PD
D1
F1
99
TI_0
OE_0
81
TI_1
[3]
LSB
80
AD0
90
T2
A0
AD8/
AD16
B0
RxD0
IDL
D0
P
98
RI_0
STINT_0
80
RI_1
[3]
Reset
value
FFH
FFH
FFH
FFH
00H/
10H
00H
00H
00H
00H
xxH
00H
00H
00H
00H
XXH
00H
[4]
[6]