P89LPC9321FN NXP Semiconductors, P89LPC9321FN Datasheet - Page 39
P89LPC9321FN
Manufacturer Part Number
P89LPC9321FN
Description
MCU 8-Bit 89LP 80C51 CISC 8KB Flash 2.5V/3.3V 28-Pin PDIP Tube
Manufacturer
NXP Semiconductors
Datasheet
1.P89LPC9321FN.pdf
(70 pages)
NXP Semiconductors
P89LPC9321_1
Product data sheet
Fig 14. I
P1.3/SDA
P1.2/SCL
2
C-bus serial interface block diagram
OUTPUT
OUTPUT
Rev. 01 — 9 December 2008
FILTER
FILTER
STAGE
STAGE
INPUT
INPUT
P1.3
P1.2
8-bit microcontroller with accelerated two-clock 80C51 core
status bus
I2SCLH
overflow
I2SCLL
I2CON
I2STAT
timer 1
AND SYNC LOGIC
SERIAL CLOCK
BIT COUNTER /
ARBITRATION
GENERATOR
SCL DUTY CYCLE REGISTERS
ADDRESS REGISTER
CONTROL REGISTERS AND
SHIFT REGISTER
DECODER
COMPARATOR
STATUS
STATUS REGISTER
8
CONTROL
TIMING
LOGIC
P89LPC9321
AND
I2DAT
8
8
8
ACK
I2ADR
© NXP B.V. 2008. All rights reserved.
interrupt
CCLK
002aaa899
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