P89LPC9301(2009) 查看數據表（PDF） - NXP Semiconductors.

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P89LPC9301
(Rev.:2009)

8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable flash

NXP Semiconductors. 

NXP Semiconductors

P89LPC9301/931A1

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

P1.3/SDA

P1.2/SCL

8

P1.3

INPUT

FILTER

OUTPUT

STAGE

INPUT

FILTER

OUTPUT

STAGE

P1.2

ADDRESS REGISTER

I2ADR

COMPARATOR

SHIFT REGISTER

8

ACK

I2DAT

BIT COUNTER /

ARBITRATION

AND SYNC LOGIC

SERIAL CLOCK

GENERATOR

TIMING

AND

CONTROL

LOGIC

timer 1

overflow

I2CON

I2SCLH

I2SCLL

CONTROL REGISTERS AND

SCL DUTY CYCLE REGISTERS

8

CCLK

interrupt

status bus

STATUS

DECODER

I2STAT

STATUS REGISTER

8

Fig 8. I2C-bus serial interface block diagram

002aaa899

P89LPC9301_931A1_1

Preliminary data sheet

Rev. 01 — 9 April 2009

© NXP B.V. 2009. All rights reserved.

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