mc68hc908qb4 Freescale Semiconductor, Inc, mc68hc908qb4 Datasheet - Page 162

• Manufacturer Part Number: mc68hc908qb4
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Serial Peripheral Interface (SPI) Module
162
SPSCK CYCLE
CPHA = 1
CPHA = 0
NUMBER
CLOCK
CLOCK
CLOCK
CLOCK
CLOCK
SPSCK
SPSCK
MOSI
BUS
BUS
BUS
BUS
BUS
Figure 15-7. Transmission Start Delay (Master)
TO SPDR
TO SPDR
TO SPDR
WRITE
WRITE
WRITE
TO SPDR
TO SPDR
WRITE
WRITE
EARLIEST
EARLIEST
EARLIEST
EARLIEST
MC68HC908QB8 Data Sheet, Rev. 2
INITIATION DELAY FROM WRITE SPDR TO TRANSFER BEGIN
LATEST
INITIATION DELAY
128 POSSIBLE START POINTS
32 POSSIBLE START POINTS
SPSCK = BUS CLOCK ÷ 128;
8 POSSIBLE START POINTS
SPSCK = BUS CLOCK ÷ 32;
SPSCK = BUS CLOCK ÷ 8;
2 POSSIBLE START POINTS
SPSCK = BUS CLOCK ÷ 2;
MSB
1
BIT 6
2
LATEST
LATEST
LATEST
BIT 5
3
Freescale Semiconductor