MC68HC912B32MFU8 MOTOROLA [Motorola, Inc], MC68HC912B32MFU8 Datasheet - Page 92

• Manufacturer Part Number: MC68HC912B32MFU8
• Description: 16-Bit Microcontroller
• Manufacturer: MOTOROLA [Motorola, Inc]

92
MOTOROLA
SCK (CPOL=0)
SCK (CPOL=1)
SAMPLE I
(MOSI/MISO)
CHANGE O
CHANGE O
SEL SS (O)
(Master only)
SEL SS (I)
SCK (CPOL=0)
SCK (CPOL=1)
SAMPLE I
(MOSI/MISO)
CHANGE O
CHANGE O
SEL SS (O)
(Master only)
SEL SS (I)
(MOSI pin)
(MISO pin)
(MOSI pin)
(MISO pin)
MSB first (LSBF=0) :
MSB first (LSBF=0) :
LSB first (LSBF=1) :
LSB first (LSBF=1) :
Transfer
Transfer
t
L
t
L
MSB
MSB
LSB
LSB
Figure 22 SPI Clock Format 0 (CPHA = 0)
Figure 23 SPI Clock Format 1 (CPHA = 1)
Begin
Begin
Bit 6
Bit 1
Bit 6
Bit 1
Bit 5
Bit 2
Bit 5
Bit 2
Bit 4
Bit 3
Bit 4
Bit 3
Bit 3
Bit 4
Bit 3
Bit 4
Bit 2
Bit 5
Bit 2
Bit 5
Bit 1
Bit 6
Bit 1
Bit 6
End
End
MC68HC912B32TS/D
MSB
MSB
LSB
LSB
t
T
MC68HC912B32
HC12 SPI CLOCK FORM 0
Minimum 1/2 SCK
Minimum 1/2 SCK
t
t
T
HC12 SPI CLOCK FORM 1
I
for t
for t
T
t
T
t
, t
L
, t
I
l
l
, t
, t
L
L
t
L