P89LPC930FDH datasheet(31/55 Pages) PHILIPS

부품명	P89LPC930FDH

상세설명	8-bit microcontrollers with two-clock 80C51 core 4 kB/8 kB 3 V Flash with 256-byte data RAM

PDF	55 Pages

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제조업체	PHILIPS [NXP Semiconductors]

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31 / 55 page

Philips Semiconductors

P89LPC930/931

8-bit microcontrollers with two-clock 80C51 core

Product data

Rev. 05 — 15 December 2004

31 of 55

9397 750 14472

8.19 Serial Peripheral Interface (SPI)

LPC930/931 provides another high-speed serial communication interface - the SPI

interface. SPI is a full-duplex, high-speed, synchronous communication bus with two

operation modes: Master mode and Slave mode. Up to 4.5 Mbit/s can be supported

in Master or 3.0 Mbit/s in Slave mode. It has a Transfer Completion Flag and Write

Collision Flag Protection.

Fig 8.

I2C-bus serial interface block diagram.

002aaa421

ADDRESS REGISTER

COMPARATOR

SHIFT REGISTER

I2ADR

ACK

BIT COUNTER /

ARBITRATION &

SYNC LOGIC

I2DAT

TIMING

CONTROL

LOGIC

SERIAL CLOCK

GENERATOR

CCLK

INTERRUPT

INPUT

FILTER

OUTPUT

STAGE

INPUT

FILTER

OUTPUT

STAGE

P1.3

P1.3/SDA

P1.2/SCL

P1.2

TIMER 1

OVERFLOW

CONTROL REGISTERS &

SCL DUTY CYCLE REGISTERS

I2CON

I2SCLH

I2SCLL

STATUS

DECODER

STATUS BUS

STATUS REGISTER

I2STAT

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