PCM18XT0 Microchip Technology, PCM18XT0 Datasheet - Page 225
PCM18XT0
Manufacturer Part Number
PCM18XT0
Description
MODULE PROC PIC18F4685
Manufacturer
Microchip Technology
Datasheet
1.PCM18XT0.pdf
(484 pages)
Specifications of PCM18XT0
Accessory Type
Processor Module
Product
Microcontroller Modules
Core Processor
PIC18F4685
Lead Free Status / RoHS Status
Not applicable / Not applicable
For Use With/related Products
ICE2000
For Use With
ICE2000 - EMULATOR MPLAB-ICE 2000 POD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Not applicable / Not applicable
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FIGURE 17-27:
FIGURE 17-28:
© 2009 Microchip Technology Inc.
SDA
SCL
SEN
BCLIF
S
SSPIF
SDA
SCL
SEN
BCLIF
S
SSPIF
BUS COLLISION DURING START CONDITION (SCL = 0)
BRG RESET DUE TO SDA ARBITRATION DURING START CONDITION
SDA pulled low by other master.
Reset BRG and assert SDA.
‘0’
‘0’
bus collision occurs. Set BCLIF.
SCL = 0 before BRG time-out,
Set SEN, enable Start
sequence if SDA = 1, SCL = 1
Less than T
BRG
SDA = 0, SCL = 1
PIC18F2682/2685/4682/4685
SDA = 0, SCL = 1
SDA = 0, SCL = 1,
Set SEN, enable START
sequence if SDA = 1, SCL = 1
T
BRG
S
Set S
set SSPIF
T
BRG
T
BRG
Set SSPIF
SCL pulled low after BRG
time-out
SCL = 0 before SDA = 0,
bus collision occurs. Set BCLIF.
Interrupt cleared
in software
Interrupts cleared
in software
‘0’
‘0’
‘0’
DS39761C-page 225
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