Datasheet

SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
638
32.8.8 USART Transmit Holding Register
Name: US_THR
Address: 0xFFF8C01C (0), 0xFFF9001C (1), 0xFFF9401C (2), 0xFFF9801C (3)
Access: Write-only
• TXCHR: Character to be Transmitted
Next character to be transmitted after the current character if TXRDY is not set.
• TXSYNH: Sync Field to be Transmitted
0: The next character sent is encoded as a data. Start Frame Delimiter is DATA SYNC.
1: The next character sent is encoded as a command. Start Frame Delimiter is COMMAND SYNC.
31 30 29 28 27 26 25 24
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23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
TXSYNH ––––––TXCHR
76543210
TXCHR