Datasheet

626
32117D–AVR-01/12
AT32UC3C
25.7.1 Control Register
Name: CR
Access Type: Write-only
Offset: 0x0
Reset Value: -
•
LINWKUP: Send LIN Wakeup Signal
0: No effect:
1: Sends a wakeup signal on the LIN bus.
• LINABT: Abort LIN Transmission
0: No effect.
1: Abort the current LIN transmission.
• RTSDIS/RCS: Request to Send Disable/Release SPI Chip Select
If USART does not operate in SPI Master Mode (MODE … 0xE):
0: No effect.
1: Drives the pin RTS to 1.
If USART operates in SPI Master Mode (MODE = 0xE):
RCS = 0: No effect.
RCS = 1: Releases the Slave Select Line NSS (RTS pin).
• RTSEN/FCS: Request to Send Enable/Force SPI Chip Select
If USART does not operate in SPI Master Mode (MODE … 0xE):
0: No effect.
1: Drives the pin RTS to 0.
If USART operates in SPI Master Mode (MODE = 0xE):
FCS = 0: No effect.
FCS = 1: Forces the Slave Select Line NSS (RTS pin) to 0, even if USART is no transmitting, in order to address SPI slave
devices supporting the CSAAT Mode (Chip Select Active After Transfer).
• DTRDIS: Data Terminal Ready Disable
0: No effect.
1: Drives the pin DTR to 1.
• DTREN: Data Terminal Ready Enable
0: No effect.
1: Drives the pin DTR at 0.
• RETTO: Rearm Time-out
0: No effect
1: Restart Time-out
31 30 29 28 27 26 25 24
––––––––
23 22 21 20 19 18 17 16
– – LINWKUP LINABT RTSDIS/RCS RTSEN/FCS DTRDIS DTREN
15 14 13 12 11 10 9 8
RETTO RSTNACK RSTIT SENDA STTTO STPBRK STTBRK RSTSTA
76543210
TXDIS TXEN RXDIS RXEN RSTTX RSTRX – –