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PIC18F23K22-E/ML Datasheet(PDF) 250 Page - Microchip Technology

Part # PIC18F23K22-E/ML
Description  28/40/44-Pin, Low-Power, High-Performance Microcontrollers with nanoWatt XLP Technology
PDF  496 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F23K22-E/ML Datasheet(HTML) 250 Page - Microchip Technology

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PIC18(L)F2X/4XK22
DS41412C-page 250
Preliminary
 2010 Microchip Technology Inc.
FIGURE 15-34:
BUS COLLISION DURING START CONDITION (SCLx = 0)
FIGURE 15-35:
BRG RESET DUE TO SDA ARBITRATION DURING START CONDITION
SDAx
SCLx
SEN
bus collision occurs. Set BCLxIF.
SCLx = 0 before SDAx = 0,
Set SEN, enable Start
sequence if SDAx = 1, SCLx = 1
TBRG
TBRG
SDAx = 0, SCLx = 1
BCLxIF
S
SSPxIF
Interrupt cleared
by software
bus collision occurs. Set BCLxIF.
SCLx = 0 before BRG time-out,
’0’’0’
’0’
’0’
SDAx
SCLx
SEN
Set S
Less than TBRG
TBRG
SDAx = 0, SCLx = 1
BCLxIF
S
SSPxIF
S
Interrupts cleared
by software
set SSPxIF
SDAx = 0, SCLx = 1,
SCLx pulled low after BRG
time-out
Set SSPxIF
’0’
SDAx pulled low by other master.
Reset BRG and assert SDAx.
Set SEN, enable Start
sequence if SDAx = 1, SCLx = 1



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