P89LPC9321FN NXP Semiconductors, P89LPC9321FN Datasheet - Page 16

• Manufacturer Part Number: P89LPC9321FN
• Description: MCU 8-Bit 89LP 80C51 CISC 8KB Flash 2.5V/3.3V 28-Pin PDIP Tube
• Manufacturer: NXP Semiconductors

Table 4.
* indicates SFRs that are bit addressable.
Name
P1*
P2*
P3*
P0M1
P0M2
P1M1
P1M2
P2M1
P2M2
P3M1
P3M2
PCON
PCONA
PSW*
PT0AD
RSTSRC
RTCCON
Special function registers
Description
Port 1
Port 2
Port 3
Port 0 output
mode 1
Port 0 output
mode 2
Port 1 output
mode 1
Port 1 output
mode 2
Port 2 output
mode 1
Port 2 output
mode 2
Port 3 output
mode 1
Port 3 output
mode 2
Power control
register
Power control
register A
Program status
word
Port 0 digital
input disable
Reset source
register
RTC control
Bit address
Bit address
Bit address
SFR
addr.
A0H
B0H
A4H
A5H
B1H
B2H
B5H
D0H
DFH
D1H
90H
84H
85H
91H
92H
87H
F6H
Bit functions and addresses
(P0M1.7)
(P0M2.7)
(P1M1.7)
(P1M2.7)
(P2M1.7)
(P2M2.7)
…continued
SMOD1
RTCPD
RTCF
MSB
OCC
ICA
CY
A7
B7
D7
-
-
-
-
-
(P0M1.6)
(P0M2.6)
(P1M1.6)
(P1M2.6)
(P2M1.6)
(P2M2.6)
SMOD0
DEEPD
RTCS1
OCB
OCA
BOIF
A6
B6
D6
AC
-
-
-
-
(P0M1.5)
(P0M2.5)
(P2M1.5)
(P2M2.5)
PT0AD.5
SPICLK
RTCS0
VCPD
RST
BOF
A5
B5
D5
F0
-
-
-
-
-
-
(P0M1.4)
(P0M2.4)
(P1M1.4)
(P1M2.4)
(P2M1.4)
(P2M2.4)
PT0AD.4
INT1
POF
RS1
BOI
SS
A4
B4
D4
-
-
-
-
-
INT0/SDA
(P0M1.3)
(P0M2.3)
(P1M1.3)
(P1M2.3)
(P2M1.3)
(P2M2.3)
PT0AD.3
MISO
R_BK
I2PD
GF1
RS0
A3
B3
D3
-
-
-
-
(P0M1.2)
(P0M2.2)
(P1M1.2)
(P1M2.2)
(P2M1.2)
(P2M2.2)
PT0AD.2
T0/SCL
R_WD
SPPD
MOSI
GF0
OV
A2
B2
D2
-
-
-
-
(P0M1.1)
(P0M2.1)
(P1M1.1)
(P1M2.1)
(P2M1.1)
(P2M2.1)
(P3M1.1)
(P3M2.1)
PT0AD.1
PMOD1
XTAL1
R_SF
ERTC
OCD
RXD
SPD
A1
B1
D1
F1
(P0M1.0)
(P0M2.0)
(P1M1.0)
(P1M2.0)
(P2M1.0)
(P2M2.0)
(P3M1.0)
(P3M2.0)
PMOD0
CCUPD
RTCEN
XTAL2
R_EX
LSB
TXD
ICB
A0
B0
D0
P
-
Reset value
Hex
[1]
[1]
[1]
FF
00
D3
00
FF
00
03
00
00
00
00
00
[3]
60
[1]
[1]
[1]
[1]
[1]
[1]
[1][6]
[1]
[1]
[1]
Binary
1111 1111
0000 0000
11x1 xx11
00x0 xx00
1111 1111
0000 0000
xxxx xx11
xxxx xx00
0000 0000
0000 0000
0000 0000
xx00 000x
011x xx00