P89LPC932 查看數據表（PDF） - Philips Electronics
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P89LPC932 Datasheet PDF : 60 Pages
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Philips Semiconductors
P89LPC932
8-bit microcontroller with accelerated two-clock 80C51 core
Table 3: Pin description…continued
Symbol
Pin
Type Description
TSSOP, HVQFN
PLCC
P1.0 - P1.7
18, 17,
12, 11,
10, 6, 5,
4
14, 13, 8,
7, 6, 2, 1,
28
I/O, I [1] Port 1: Port 1 is an 8-bit I/O port with a user-configurable output type, except
for three pins as noted below. During reset Port 1 latches are configured in
the input only mode with the internal pull-up disabled. The operation of the
configurable Port 1 pins as inputs and outputs depends upon the port
configuration selected. Each of the configurable port pins are programmed
independently. Refer to Section 8.12.1 “Port configurations” and Table 8 “DC
electrical characteristics” for details. P1.2 - P1.3 are open drain when used as
outputs. P1.5 is input only.
All pins have Schmitt triggered inputs.
Port 1 also provides various special functions as described below:
18
14
I/O P1.0 — Port 1 bit 0.
O
TXD — Transmitter output for the serial port.
17
13
I/O P1.1 — Port 1 bit 1.
I
RXD — Receiver input for the serial port.
12
8
I/O P1.2 — Port 1 bit 2 (open-drain when used as output).
I/O T0 — Timer/counter 0 external count input or overflow output (open-drain
when used as output).
I/O
SCL — I2C serial clock input/output.
11
7
I/O P1.3 — Port 1 bit 3 (open-drain when used as output).
I
INT0 — External interrupt 0 input.
I/O
SDA — I2C serial data input/output.
10
6
I
P1.4 — Port 1 bit 4.
I
INT1 — External interrupt 1 input.
6
2
I
P1.5 — Port 1 bit 5 (input only).
I
RST — External Reset input during power-on or if selected via UCFG1.
When functioning as a reset input, a LOW on this pin resets the
microcontroller, causing I/O ports and peripherals to take on their default
states, and the processor begins execution at address 0. Also used during a
power-on sequence to force In-System Programming mode.
5
1
I/O P1.6 — Port 1 bit 6.
O
OCB — Output Compare B.
4
28
I/O P1.7 — Port 1 bit 7.
O
OCC — Output Compare C.
9397 750 12379
Product data
Rev. 04 — 06 January 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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