PCM18XT0 Microchip Technology, PCM18XT0 Datasheet - Page 225

• Manufacturer Part Number: PCM18XT0
• Description: MODULE PROC PIC18F4685
• Manufacturer: Microchip Technology

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

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