at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 341

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

21.7.1
Name:
Access Type:
Offset:
Reset Value:
•
•
•
•
•
•
•
32059J–12/2010
RTSDIS/RCS: Request to Send Disable/Release SPI Chip Select
RTSEN/FCS: Request to Send Enable/Force SPI Chip Select
DTRDIS: Data Terminal Ready Disable
DTREN: Data Terminal Ready Enable
RETTO: Rearm Time-out
RSTNACK: Reset Non Acknowledge
RSTIT: Reset Iterations
RETTO
TXDIS
31
23
15
–
–
7
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).
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).
0: No effect.
1: Drives the pin DTR to 1.
0: No effect.
1: Drives the pin DTR at 0.
0: No effect
1: Restart Time-out
0: No effect
1: Resets NACK in CSR.
0: No effect.
Control Register
RSTNACK
TXEN
30
22
14
CR
Write-only
0x0
-
–
–
6
RXDIS
RSTIT
29
21
13
–
–
5
SENDA
RXEN
28
20
12
–
–
4
RTSDIS/RCS
STTTO
RSTTX
27
19
11
–
3
RTSEN/FCS
STPBRK
RSTRX
26
18
10
–
2
STTBRK
DTRDIS
25
17
–
9
1
–
AT32UC3B
RSTSTA
DTREN
24
16
–
8
0
–
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