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Philips Semiconductors
1.2 Pin description
Table 1:
Pin description
Symbol
Pin
TSSOP28,
PLCC28
P0.0 to P0.7
P0.0/CMP2/
3
KBI0/AD05
P0.1/CIN2B/
26
KBI1/AD00
P0.2/CIN2A/
25
KBI2/AD01
P0.3/CIN1B/
24
KBI3/AD02
P0.4/CIN1A/
23
KBI4/AD03
P0.5/CMPREF/
22
KBI5
User manual
Type Description
HVQFN28
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
page 34
The Keypad Interrupt feature operates with Port 0 pins.
All pins have Schmitt triggered inputs.
Port 0 also provides various special functions as described below:
27
I/O
P0.0 — Port 0 bit 0.
O
CMP2 — Comparator 2 output.
I
KBI0 — Keyboard input 0.
I
AD05 — ADC0 channel 5 analog input.
22
I/O
P0.1 — Port 0 bit 1.
I
CIN2B — Comparator 2 positive input B.
I
KBI1 — Keyboard input 1.
I
AD00 — ADC0 channel 0 analog input.
21
I/O
P0.2 — Port 0 bit 2.
I
CIN2A — Comparator 2 positive input A.
I
KBI2 — Keyboard input 2.
I
AD01 — ADC0 channel 1 analog input.
20
I/O
P0.3 — Port 0 bit 3.
I
CIN1B — Comparator 1 positive input B.
I
KBI3 — Keyboard input 3.
I
AD02 — ADC0 channel 2 analog input.
19
I/O
P0.4 — Port 0 bit 4.
I
CIN1A — Comparator 1 positive input A.
I
KBI4 — Keyboard input 4.
I
AD03 — ADC0 channel 3 analog input.
18
I/O
P0.5 — Port 0 bit 5.
I
CMPREF — Comparator reference (negative) input.
I
KBI5 — Keyboard input 5.
Rev. 03 — 7 June 2005
Section 5.1 "Port configurations" on
for details.
UM10119
P89LPC938 User manual
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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