NXP Semiconductors
P89LPC932A1
8-bit microcontroller with accelerated two-clock 80C51 core
P2.0/ICB
P2.1/OCD
P0.0/CMP2/KBI0
P1.7/OCC
P1.6/OCB
P1.5/RST
V
SS
P3.1/XTAL1
P3.0/XTAL2/CLKOUT
1
2
3
4
5
6
7
8
9
28 P2.7/ICA
27 P2.6/OCA
26 P0.1/CIN2B/KBI1
25 P0.2/CIN2A/KBI2
24 P0.3/CIN1B/KBI3
23 P0.4/CIN1A/KBI4
22 P0.5/CMPREF/KBI5
21 V
DD
20 P0.6/CMP1/KBI6
19 P0.7/T1/KBI7
18 P1.0/TXD
17 P1.1/RXD
16 P2.5/SPICLK
15 P2.4/SS
002aac785
P89LPC932A1FN
P1.4/INT1 10
P1.3/INT0/SDA 11
P1.2/T0/SCL 12
P2.2/MOSI 13
P2.3/MISO 14
Fig 6. P89LPC932A1 DIP28 pin configuration
6.2 Pin description
Table 2.
Symbol
Pin description
Pin
TSSOP28, HVQFN28
PLCC28,
DIP28
P0.0 to P0.7
I/O
Port 0:
Port 0 is an 8-bit I/O port with a user-configurable output type.
During reset Port 0 latches are configured in the input only mode with the
internal pull-up disabled. The operation of Port 0 pins as inputs and
outputs depends upon the port configuration selected. Each port pin is
configured independently. Refer to
and
for details.
The Keypad Interrupt feature operates with Port 0 pins.
All pins have Schmitt trigger inputs.
Port 0 also provides various special functions as described below:
P0.0/CMP2/
KBI0
3
27
I/O
O
I
P0.1/CIN2B/
KBI1
26
22
I/O
I
I
P0.2/CIN2A/
KBI2
25
21
I/O
I
I
P0.3/CIN1B/
KBI3
24
20
I/O
I
I
P0.0 —
Port 0 bit 0.
CMP2 —
Comparator 2 output.
KBI0 —
Keyboard input 0.
P0.1 —
Port 0 bit 1.
CIN2B —
Comparator 2 positive input B.
KBI1 —
Keyboard input 1.
P0.2 —
Port 0 bit 2.
CIN2A —
Comparator 2 positive input A.
KBI2 —
Keyboard input 2.
P0.3 —
Port 0 bit 3.
CIN1B —
Comparator 1 positive input B.
KBI3 —
Keyboard input 3.
Type Description
P89LPC932A1_3
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 03 — 12 March 2007
7 of 64
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