p89lpc9401 NXP Semiconductors, p89lpc9401 Datasheet - Page 30

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p89lpc9401

Manufacturer Part Number
p89lpc9401
Description
8-bit Microcontroller With Accelerated Two-clock 80c51 Core 8 Kb 3 V Byte-erasable Flash With 32 Segment X 4 Lcd Driver
Manufacturer
NXP Semiconductors
Datasheet

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Philips Semiconductors
P89LPC9401_1
Preliminary data sheet
Fig 10. I
P1.3/SDA
P1.2/SCL
2
C-bus serial interface block diagram - P89LPC931
8-bit two-clock 80C51 microcontroller with 32 segment
Rev. 01 — 5 September 2005
OUTPUT
OUTPUT
FILTER
FILTER
STAGE
STAGE
INPUT
INPUT
P1.3
P1.2
status bus
I2SCLH
I2SCLL
overflow
I2CON
I2STAT
timer 1
ARBITRATION &
BIT COUNTER /
SERIAL CLOCK
SYNC LOGIC
GENERATOR
SCL DUTY CYCLE REGISTERS
ADDRESS REGISTER
SHIFT REGISTER
CONTROL REGISTERS &
DECODER
COMPARATOR
STATUS
STATUS REGISTER
8
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
CONTROL
TIMING
LOGIC
P89LPC9401
AND
I2DAT
8
8
8
ACK
I2ADR
interrupt
CCLK
002aaa899
4 LCD driver
30 of 59

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