PIC16F1512T-E/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F1512T-E/SO

28-Pin Flash Microcontrollers with XLP Technology

Microchip Technology 

PIC16(L)F1512/3

FIGURE 20-34:

BUS COLLISION DURING START CONDITION (SCL = 0)

SDA = 0, SCL = 1

SDA

TBRG

TBRG

SCL

Set SEN, enable Start

sequence if SDA = 1, SCL = 1

SEN

BCLIF

SCL = 0 before BRG time-out,

bus collision occurs. Set BCLIF.

S

’0’

SSPIF ’0’

SCL = 0 before SDA = 0,

bus collision occurs. Set BCLIF.

Interrupt cleared

by software

’0’

’0’

FIGURE 20-35: BRG RESET DUE TO SDA ARBITRATION DURING START CONDITION

SDA

SDA = 0, SCL = 1

Set S

Less than TBRG

TBRG

SDA pulled low by other master.

Reset BRG and assert SDA.

Set SSPIF

SCL

SEN

BCLIF

S

SCL pulled low after BRG

time-out

Set SEN, enable Start

sequence if SDA = 1, SCL = 1

’0’

S

SSPIF

SDA = 0, SCL = 1,

set SSPIF

Interrupts cleared

by software

DS40001624C-page 218

 2012-2014 Microchip Technology Inc.

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