P89LPC933FDH datasheet(7/75 Pages) PHILIPS

7 / 75 page

9397 750 15113

Product data sheet

Rev. 06 — 20 June 2005

7 of 75

Philips Semiconductors

P89LPC933/934/935/936

8-bit microcontroller with accelerated two-clock 80C51 core

6.2 Pin description

Table 4:

Pin description

Symbol

Type

Description

TSSOP28,

PLCC28

HVQFN28

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 Section 8.13.1 “Port conﬁgurations”

and Table 11 “Static characteristics” 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/AD01

I/O

P0.0 — Port 0 bit 0.

CMP2 — Comparator 2 output.

KBI0 — Keyboard input 0.

AD01 — ADC0 channel 1 analog input. (P89LPC935/936)

P0.1/CIN2B/

KBI1/AD10

I/O

P0.1 — Port 0 bit 1.

CIN2B — Comparator 2 positive input B.

KBI1 — Keyboard input 1.

AD10 — ADC1 channel 0 analog input.

P0.2/CIN2A/

KBI2/AD11

I/O

P0.2 — Port 0 bit 2.

CIN2A — Comparator 2 positive input A.

KBI2 — Keyboard input 2.

AD11 — ADC1 channel 1 analog input.

P0.3/CIN1B/

KBI3/AD12

I/O

P0.3 — Port 0 bit 3.

CIN1B — Comparator 1 positive input B.

KBI3 — Keyboard input 3.

AD12 — ADC1 channel 2 analog input.

P0.4/CIN1A/

KBI4/DAC1

I/O

P0.4 — Port 0 bit 4.

CIN1A — Comparator 1 positive input A.

KBI4 — Keyboard input 4.

DAC1 — Digital-to-analog converter output 1.

AD13 — ADC1 channel 3 analog input.

P0.5/

CMPREF/

KBI5

I/O

P0.5 — Port 0 bit 5.

CMPREF — Comparator reference (negative) input.

KBI5 — Keyboard input 5.

P0.6/CMP1/

KBI6

I/O

P0.6 — Port 0 bit 6.

CMP1 — Comparator 1 output.

KBI6 — Keyboard input 6.

P0.7/T1/

KBI7

I/O

P0.7 — Port 0 bit 7.

I/O

T1 — Timer/counter 1 external count input or overﬂow output.

KBI7 — Keyboard input 7.

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