Datasheet

476
32142D–06/2013
ATUC64/128/256L3/4U
20.7.9 Baud Rate Generator Register
Name:
BRGR
Access Type: Read-write
Offset: 0x20
Reset Value: 0x00000000
This register can only be written to if write protection is disabled, see ”Write Protect Mode Register” on page 482.
• FP: Fractional Part
0: Fractional divider is disabled.
1 - 7: Baud rate resolution, defined by FP x 1/8.
• CD: Clock Divider
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]
76543210
CD[7:0]
Table 20-17.
CD
SYNC = 0
SYNC = 1
or
MODE = SPI
(Master or Slave)
OVER = 0 OVER = 1
0 Baud Rate Clock Disabled
1 to 65535
Baud Rate =
Selected Clock/16/CD
Baud Rate =
Selected Clock/8/CD
Baud Rate =
Selected Clock /CD