p89lpc932ba NXP Semiconductors, p89lpc932ba Datasheet - Page 10

• Manufacturer Part Number: p89lpc932ba
• Description: P89lpc932 8-bit Microcontroller With Accelerated Two-clock 80c51 Core 8 Kb Flash With 512-byte Data Eeprom And 768-byte Ram
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 3:
[1]
9397 750 12379
Product data
Symbol
P3.0 - P3.1
V
V
SS
DD
Input/Output for P1.0-P1.4, P1.6, P1.7. Input for P1.5.
Pin description
Pin
TSSOP,
PLCC
9, 8
9
8
7
21
HVQFN
5, 4
5
4
3
17
…continued
Type
I/O
I/O
O
O
I/O
I
I
I
Description
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
electrical characteristics”
All pins have Schmitt triggered inputs.
Port 3 also provides various special functions as described below:
P3.0 — Port 3 bit 0.
XTAL2 — Output from the oscillator amplifier (when a crystal oscillator option
is selected via the FLASH configuration.
CLKOUT — CPU clock divided by 2 when enabled via SFR bit (ENCLK -
TRIM.6). It can be used if the CPU clock is the internal RC oscillator,
watchdog oscillator or external clock input, except when XTAL1/XTAL2 are
used to generate clock source for the Real-Time clock/system timer.
P3.1 — Port 3 bit 1.
XTAL1 — Input to the oscillator circuit and internal clock generator circuits
(when selected via the FLASH configuration). It can be a port pin if internal
RC oscillator or watchdog oscillator is used as the CPU clock source, and if
XTAL1/XTAL2 are not used to generate the clock for the Real-Time
clock/system timer.
Ground: 0 V reference.
Power Supply: This is the power supply voltage for normal operation as well
as Idle and Power-Down modes.
Rev. 04 — 06 January 2004
8-bit microcontroller with accelerated two-clock 80C51 core
Section 8.12.1 “Port configurations”
for details.
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
P89LPC932
and
Table 8 “DC
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