Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
806
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
• RSTSTA: Reset Status Bits
0: No effect.
1: Resets the status bits OVRE, UNRE in US_CSR.
• FCS: Force SPI Chip Select
Applicable if USART operates in SPI Master Mode (USART_MODE = 0xE):
0: No effect.
1: Forces the Slave Select Line NSS (RTS pin) to 0, even if USART is no transmitting, in order to address SPI slave devices sup-
porting the CSAAT Mode (Chip Select Active After Transfer).
porting the CSAAT Mode (Chip Select Active After Transfer).
• RCS: Release SPI Chip Select
Applicable if USART operates in SPI Master Mode (USART_MODE = 0xE):
0: No effect.
1: Releases the Slave Select Line NSS (RTS pin).