AT91SAM9G10-EK Atmel, AT91SAM9G10-EK Datasheet - Page 386
AT91SAM9G10-EK
Manufacturer Part Number
AT91SAM9G10-EK
Description
KIT DEV FOR SAM9G10 ARM
Manufacturer
Atmel
Type
MCUr
Specifications of AT91SAM9G10-EK
Contents
Board, Cables, Power Supply
Silicon Manufacturer
Atmel
Core Architecture
AVR
Kit Contents
Board
Svhc
No SVHC (15-Dec-2010)
Mcu Supported Families
AT91SAM9G10, ARM926EJ-S
Tool / Board Applications
Microcontroller
Rohs Compliant
Yes
For Use With/related Products
*
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Figure 31-16. TWI Write Operation with Single Data Byte and Internal Address
386
AT91SAM9G10
(CLDIV, CHDIV, CKDIV) in TWI_CWGR
- Internal address size (IADRSZ)
- Device slave address (DADR)
Set the Master Mode register:
TWI_CR = MSEN + SVDIS
Write ==> bit MREAD = 0
TWI_THR = Data to send
Set the internal address
Set the Control register:
Write STOP command
- Transfer direction bit
TWI_IADR = address
Load transmit register
Read Status register
Read Status register
(Needed only once)
TWI_CR = STOP
Transfer finished
Yes
- Master enable
TXCOMP = 1?
Set TWI clock
TXRDY = 1?
Yes
BEGIN
No
No
6462A–ATARM–03-Jun-09
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