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Philips Semiconductors
Table 1:
Pin description
Symbol
Pin
TSSOP28,
PLCC28
P1.7/OCC/
4
AD04
P2.0 to P2.7
P2.0/ICB/ AD07 1
P2.1/OCD/
2
AD06
P2.2/MOSI
13
P2.3/MISO
14
P2.4/SS
15
P2.5/SPICLK
16
P2.6/OCA
27
P2.7/ICA
28
P3.0 to P3.1
User manual
...continued
Type Description
HVQFN28
28
I/O
P1.7 — Port 1 bit 7.
O
OCC — Output Compare C.
I
AD04 — ADC0 channel 4 analog input.
I/O
Port 2: Port 2 is an 8-bit I/O port with a user-configurable output type.
During reset Port 2 latches are configured in the input only mode with the
internal pull-up disabled. The operation of Port 2 pins as inputs and
outputs depends upon the port configuration selected. Each port pin is
configured independently. Refer to
page 34
All pins have Schmitt triggered inputs.
Port 2 also provides various special functions as described below:
25
I/O
P2.0 — Port 2 bit 0.
I
ICB — Input Capture B.
I
AD07 — ADC0 channel 7 analog input.
26
I/O
P2.1 — Port 2 bit 1.
O
OCD — Output Compare D.
I
AD06 — ADC0 channel 6 analog input.
9
I/O
P2.2 — Port 2 bit 2.
I/O
MOSI — SPI master out slave in. When configured as master, this pin is
output; when configured as slave, this pin is input.
10
I/O
P2.3 — Port 2 bit 3.
I/O
MISO — When configured as master, this pin is input, when configured
as slave, this pin is output.
11
I/O
P2.4 — Port 2 bit 4.
I
SS — SPI Slave select.
12
I/O
P2.5 — Port 2 bit 5.
I/O
SPICLK — SPI clock. When configured as master, this pin is output;
when configured as slave, this pin is input.
23
I/O
P2.6 — Port 2 bit 6.
O
OCA — Output Compare A.
24
I/O
P2.7 — Port 2 bit 7.
I
ICA — Input Capture A.
I/O
Port 3: Port 3 is a 2-bit I/O port with a user-configurable output type.
During reset Port 3 latches are configured in the input only mode with the
internal pull-up disabled. The operation of Port 3 pins as inputs and
outputs depends upon the port configuration selected. Each port pin is
configured independently. Refer to
page 34
All pins have Schmitt triggered inputs.
Port 3 also provides various special functions as described below:
Rev. 03 — 7 June 2005
Section 5.1 "Port configurations" on
for details.
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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