Datasheet

351
32133D–11/2011
UC3D
Figure 20-18. SPI Transfer Format (CPHA=1, 8 bits per transfer)
Table 20-7. SPI Bus Protocol Modes
SPI Bus Protocol Mode CPOL CPHA
001
100
211
310
CLK cycle (for reference)
CLK
(CPOL= 1)
MOSI
SPI Master ->TXD
SPI Slave ->RXD
MISO
SPI Master ->RXD
SPI Slave ->TXD
NSS
SPI Master ->RTS
SPI Slave ->CTS
MSB
MSB
1
CLK
(CPOL= 0)
3
5
6
78
LSB
1234
6
65
5
43
21
LSB
24