P89LPC9381 NXP Semiconductors, P89LPC9381 Datasheet - Page 13

• Manufacturer Part Number: P89LPC9381
• Description: The P89LPC9381 is a single-chip microcontroller, available in low-cost packages, basedon a high performance processor architecture that executes instructions in two to fourclocks, six times the rate of standard 80C51 devices
• Manufacturer: NXP Semiconductors

Table 4.
* indicates SFRs that are bit addressable.
Name
IP0H
IP1*
IP1H
IP2
IP2H
KBCON
KBMASK
KBPATN
P0*
P1*
P2*
P3*
P0M1
P0M2
P1M1
P1M2
P2M1
P2M2
P3M1
P3M2
P89LPC9381 Special function registers
Description
Interrupt priority 0 high
Interrupt priority 1
Interrupt priority 1 high
Interrupt priority 2
Interrupt priority 2 high
Keypad control register
Keypad interrupt mask
register
Keypad pattern register
Port 0
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
Bit address
Bit address
Bit address
Bit address
Bit address
SFR
addr.
B7H
D6H
D7H
A0H
B0H
A4H
A5H
B1H
B2H
F8H
F7H
94H
86H
80H
90H
84H
85H
91H
92H
Bit functions and addresses
(P0M1.7) (P0M1.6) (P0M1.5) (P0M1.4) (P0M1.3) (P0M1.2)
(P0M2.7) (P0M2.6) (P0M2.5) (P0M2.4) (P0M2.3) (P0M2.2)
(P1M1.7) (P1M1.6)
(P1M2.7) (P1M2.6)
(P2M1.7) (P2M1.6) (P2M1.5) (P2M1.4) (P2M1.3) (P2M1.2)
(P2M2.7) (P2M2.6) (P2M2.5) (P2M2.4) (P2M2.3) (P2M2.2)
T1/KB7
MSB
FF
B7
87
97
97
-
-
-
-
-
-
-
-
-
-
-
…continued
PWDRT
PSTH
CMP1
/KB6
PST
FE
B6
86
96
96
H
-
-
-
-
-
-
-
-
CMPREF
SPICLK
PBOH
/KB5
RST
FD
B5
85
95
95
-
-
-
-
-
-
-
-
-
-
(P1M1.4) (P1M1.3) (P1M1.2)
(P1M2.4) (P1M2.3) (P1M2.2)
CIN1A
PSRH
PSH/
/KB4
INT1
FC
SS
84
94
94
B4
-
-
-
-
-
-
-
-
PSPIH
CIN1B
PT1H
INT0/
MISO
PSPI
/KB3
SDA
FB
B3
83
93
93
-
-
-
-
-
-
T0/SCL
CIN2A
PX1H
MOSI
PCH
/KB2
PC
FA
B2
82
92
92
-
-
-
-
-
-
(P3M1.1)
(P3M2.1)
(P0M1.1)
(P0M2.1)
(P1M1.1)
(P1M2.1)
(P2M1.1)
(P2M2.1)
PADCH
PKBIH
CIN2B
XTAL1
PT0H
PADC
PATN
_SEL
PKBI
/KB1
RXD
B1
F9
81
91
91
-
(P0M1.0)
(P0M2.0)
(P1M1.0)
(P1M2.0)
(P2M1.0)
(P2M2.0)
(P3M1.0)
(P3M2.0)
PI2CH
XTAL2
CMP2
PX0H
PI2C
KBIF
/KB0
LSB
TXD
B0
F8
80
90
90
-
-
-
Reset value
Hex
00
00
00
00
00
00
00
FF
03
00
FF
00
D3
00
FF
00
[2]
[2]
[2]
[2]
[2]
[2]
[2]
[2]
[2]
[2]
[2]
[2]
[2]
[2]
Binary
x000 0000
00x0 0000
00x0 0000
00x0 0000
00x0 0000
xxxx xx00
0000 0000
1111 1111
[2]
[2]
[2]
[2]
1111 1111
0000 0000
11x1 xx11
00x0 xx00
1111 1111
0000 0000
xxxx xx11
xxxx xx00