ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 646

Manufacturer Part Number

KIT EVAL FOR AT91SAM3U CORTEX

Manufacturer

Processor To Be Evaluated

Data Bus Width

Interface Type

Operating Supply Voltage

Silicon Manufacturer

Core Architecture

Core Sub-architecture

Silicon Core Number

Silicon Family Name

Kit Contents

Board CD Docs

Rohs Compliant

For Use With/related Products

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Manufacturer

Part Number:

Manufacturer:

Figure 33-30. Repeated Start + Reversal from Read to Write Mode

Figure 33-31. Repeated Start + Reversal from Write to Read Mode

1. In this case, if TWI_THR has not been written at the end of the read command, the clock is automatically stretched before

2. TXCOMP is only set at the end of the transmission because after the repeated start, SADR is detected again.

SAM3U Series

Reversal after a Repeated Start

Reversal of Read to Write

Reversal of Write to Read

As soon as a START is detected

The master initiates the communication by a read command and finishes it by a write command.

Figure 33-30 on page 646

1. TXCOMP is only set at the end of the transmission because after the repeated start, SADR is detected again.

The master initiates the communication by a write command and finishes it by a read com-

mand.Figure 33-31 on page 646

Read TWI_RHR

describes the repeated start + reversal from Read to Write mode.

describes the repeated start + reversal from Write to Read

Cleared after read

6430D–ATARM–25-Mar-11