SAM4L Datasheet, PDF (630/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

ATSAM4L4/L2
24.7.9 Baud Rate Generator Register
Name:
BRGR
Access Type:
Read-write
Offset:
0x20
Reset Value:
0x00000000
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
FP
15
14
13
12
11
10
9
8
CD[15:8]
7
6
5
4
3
2
1
0
CD[7:0]
This register can only be written if write protection is disabled in the “Write Protect Mode Register” (WPMR.WPEN is zero).
• FP: Fractional Part
0: Fractional divider is disabled.
1 - 7: Baud rate resolution, defined by FP x 1/8.
• CD: Clock Divider
Table 24-24. Baud Rate in Asynchronous Mode (MR.SYNC is 0)
CD
OVER = 0
0
Baud Rate Clock Disabled
OVER = 1
1 to 65535
Baud Rate = ^S----^e----^l-^e--₁--^c-₆--^t-^e--_â‹--^d-_C----^CD----^l-^o----^c---^k-
Baud Rate = ^S----^e----^l-^e---₈-^c---^t-_â‹^e---_C-^d---_D--^C----^l-^o----^c---^k-
Table 24-25. Baud Rate in Synchronous Mode (MR.SYNC is 1) and SPI Mode(MR.MODE is 0xE or 0xF)
CD
Baud Rate
0
Baud Rate Clock Disabled
1 to 65535
Baud Rate = ^S----^e----^l-^e----^c---^t-^e----^d-----^C----^l-^o----^c---^k-
CD
42023C–SAM–02/2013
630