SAM3X8C Atmel Corporation, SAM3X8C Datasheet - Page 838

• Manufacturer Part Number: SAM3X8C
• Manufacturer: Atmel Corporation

• CHRL: Character Length.
• SYNC: Synchronous Mode Select
0: USART operates in Asynchronous Mode.
1: USART operates in Synchronous Mode.
• CPHA: SPI Clock Phase
CPHA = 0: Data is changed on the leading edge of SPCK and captured on the following edge of SPCK.
CPHA = 1: Data is captured on the leading edge of SPCK and changed on the following edge of SPCK.
CPHA determines which edge of SPCK causes data to change and which edge causes data to be captured. CPHA is used
with CPOL to produce the required clock/data relationship between master and slave devices.
• PAR: Parity Type
• NBSTOP: Number of Stop Bits
838
838
– Applicable if USART operates in SPI Mode (USART_MODE = 0xE or 0xF):
Value
Value
Value
0
1
2
0
1
2
3
0
1
2
3
4
6
SAM3X/A
SAM3X/A
MULTIDROP
1_5_BIT
Name
1_BIT
2_BIT
SPACE
MARK
Name
EVEN
Name
5_BIT
6_BIT
7_BIT
8_BIT
ODD
NO
Description
1 stop bit
1.5 stop bit (SYNC = 0) or reserved (SYNC = 1)
2 stop bits
Description
Even parity
Odd parity
Parity forced to 0 (Space)
Parity forced to 1 (Mark)
No parity
Multidrop mode
Description
Character length is 5 bits
Character length is 6 bits
Character length is 7 bits
Character length is 8 bits
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12