Figure 76 and, Figure 77 f, Figure 76 and figure 77 for – Rainbow Electronics ATmega128L User Manual

Page 164: Figure 76, Nd figure 77, Atmega128(l)

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164

ATmega128(L)

2467B–09/01

Figure 76. SPI Transfer Format with CPHA = 0

Figure 77. 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)

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