Datasheet

SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
946
38.8.14 USART Transmit Holding Register
Name: US_THR
Address: 0x400A001C (0), 0x400A401C (1)
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
––––––––
23 22 21 20 19 18 17 16
––––––––
15 14 13 12 11 10 9 8
TXSYNH ––––––TXCHR
76543210
TXCHR