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P89LPC9321 데이터시트(PDF) 39 Page - NXP Semiconductors

부품명 P89LPC9321
상세설명  8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 512-byte data EEPROM
PDF  70 Pages
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제조업체  NXP [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo NXP - NXP Semiconductors

P89LPC9321 데이터시트(HTML) 39 Page - NXP Semiconductors

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P89LPC9321_1
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 9 December 2008
39 of 70
NXP Semiconductors
P89LPC9321
8-bit microcontroller with accelerated two-clock 80C51 core
Fig 14. I2C-bus serial interface block diagram
002aaa899
ADDRESS REGISTER
COMPARATOR
SHIFT REGISTER
8
I2ADR
ACK
BIT COUNTER /
ARBITRATION
AND SYNC LOGIC
8
I2DAT
TIMING
AND
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 AND
SCL DUTY CYCLE REGISTERS
I2CON
I2SCLH
I2SCLL
8
STATUS
DECODER
status bus
STATUS REGISTER
8
I2STAT



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