MC68HC912BL16 Datasheet, PDF (96/128 Pages) Freescale Semiconductor, Inc – 16-Bit Microcontroller

Freescale Semiconductor, Inc.
Transfer
Begin
End
SCK (CPOL=0)
SCK (CPOL=1)
SAMPLE I
(MOSI/MISO)
CHANGE O
(MOSI pin)
CHANGE O
(MISO pin)
SEL SS(O)
(Master only)
SEL SS(I)
t_L
MSB first (LSBF=0) : MSB
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
LSB first (LSBF=1) : LSB
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Figure 24 SPI Clock Format 0 (CPHA = 0)
LSB
MSB
t_T t_I t_L
Minimum 1/2 SCK
for t_T, t_l, t_L
HC12 SPI CLOCK FORM 0
Transfer
Begin
End
SCK (CPOL=0)
SCK (CPOL=1)
SAMPLE I
(MOSI/MISO)
CHANGE O
(MOSI pin)
CHANGE O
(MISO pin)
SEL SS(O)
(Master only)
SEL SS(I)
t_L
MSB first (LSBF=0) : MSB
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
LSB first (LSBF=1) : LSB
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Figure 25 SPI Clock Format 1 (CPHA = 1)
t_T
LSB
MSB
t_I t_L
Minimum 1/2 SCK
for t_T, t_l, t_L
HC12 SPI CLOCK FORM 1
MC68HC912BL16
96
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