Datasheet

574
11011B–ATARM–21-Feb-12
SAM3N
574
11011B–ATARM–21-Feb-12
SAM3N
30.8.12 USART FI DI RATIO Register
Name: US_FIDI
Addresses: 0x40024040 (0), 0x40028040 (1)
Access: Read-write
Reset Value: 0x174
This register can only be written if the WPEN bit is cleared in “USART Write Protect Mode Register” on page 577.
• FI_DI_RATIO: FI Over DI Ratio Value
0: If ISO7816 mode is selected, the Baud Rate Generator generates no signal.
1 - 2047: If ISO7816 mode is selected, the Baud Rate is the clock provided on SCK divided by FI_DI_RATIO.
31 30 29 28 27 26 25 24
––––––––
23 22 21 20 19 18 17 16
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15 14 13 12 11 10 9 8
––––– FI_DI_RATIO
76543210
FI_DI_RATIO