Rainbow Electronics ATmega64L - Manual (Page 135)

135
ATmega16(L)
2466B–09/01
Figure 67. SPI Transfer Format with CPHA = 0
Figure 68. SPI Transfer Format with CPHA = 1
Bit 1
Bit 6 LSB
MSB
SCK (CPOL = 0)
mode 0
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SCK (CPOL = 1)
mode 2
SS
MSB
LSB Bit 6
Bit 1 Bit 5
Bit 2 Bit 4
Bit 3 Bit 3
Bit 4 Bit 2
Bit 5 MSB first (DORD = 0)
LSB first (DORD = 1)
SCK (CPOL = 0)
mode 1
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SCK (CPOL = 1)
mode 3
SS
MSB
LSB Bit 6
Bit 1 Bit 5
Bit 2 Bit 4
Bit 3 Bit 3
Bit 4 Bit 2
Bit 5 Bit 1
Bit 6 LSB
MSB MSB first (DORD = 0)
LSB first (DORD = 1)