SAM4L Datasheet, PDF (629/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

ATSAM4L4/L2
24.7.8 Transmitter Holding Register
Name:
THR
Access Type:
Write-only
Offset:
0x1C
Reset Value:
0x00000000
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
TXSYNH
–
–
–
–
–
9
8
–
TXCHR[8]
7
6
5
4
3
2
1
0
TXCHR[7:0]
• TXSYNH: Sync Field to be transmitted
0: If MR.VARSYNC is one, the next character sent is encoded as data, and the start frame delimiter is a data sync.
1: If MR.VARSYNC is one, the next character sent is encoded as a command, and the start frame delimiter is a command sync.
• TXCHR: Character to be Transmitted
If TXRDY is zero this field contains the next character to be transmitted.
42023C–SAM–02/2013
629