at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 343

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

21.7.2
Name:
Access Type:
Offset:
Reset Value:
This register can only be written if the WPEN bit is cleared in the Write Protect Mode Register(if exists).
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32059J–12/2010
ONEBIT: Start Frame Delimiter Selector
MODSYNC: Manchester Synchronization Mode
MAN: Manchester Encoder/Decoder Enable
FILTER: Infrared Receive Line Filter
MAX_ITERATION
VAR_SYNC: Variable Synchronization of Command/Data Sync Start Frame Delimiter
DSNACK: Disable Successive NACK
INACK: Inhibit Non Acknowledge
OVER: Oversampling Mode
ONEBIT
31
23
15
–
7
0: Start Frame delimiter is COMMAND or DATA SYNC.
1: Start Frame delimiter is One Bit.
0:The Manchester Start bit is a 0 to 1 transition
1: The Manchester Start bit is a 1 to 0 transition.
0: Manchester Encoder/Decoder are disabled.
1: Manchester Encoder/Decoder are enabled.
0: The USART does not filter the receive line.
1: The USART filters the receive line using a three-sample filter (1/16-bit clock) (2 over 3 majority).
Defines the maximum number of iterations in mode ISO7816, protocol T= 0.
0: User defined configuration of command or data sync field depending on SYNC value.
1: The sync field is updated when a character is written into THR register.
0: NACK is sent on the ISO line as soon as a parity error occurs in the received character (unless INACK is set).
1: Successive parity errors are counted up to the value specified in the MAX_ITERATION field. These parity errors generate a
0: The NACK is generated.
1: The NACK is not generated.
0: 16x Oversampling.
1: 8x Oversampling.
NACK on the ISO line. As soon as this value is reached, no additional NACK is sent on the ISO line. The flag ITERATION is
asserted.
Mode Register
CHMODE
CHRL
VAR_SYNC
MODSYNC
30
22
14
MR
Read-write
0x4
-
6
DSNACK
MAN
29
21
13
5
NBSTOP
USCLKS
FILTER
INACK
28
20
12
4
OVER
27
19
11
–
3
CLKO
PAR
26
18
10
2
MODE
MAX_ITERATION
MODE9
25
17
9
1
AT32UC3B
SYNC/CPHA
MSBF/CPOL
24
16
8
0
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