MC68HC08AZ16 Datasheet, PDF (222/527 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Serial Peripheral Interface Module (SPI)
Transmission formats
BUS
CLOCK
WRITE
TO SPDR
INITIATION DELAY
MOSI
SCK
(CPHA = Õ1Õ)
SCK
(CPHA =Õ0Õ)
SCK CYCLE
NUMBER
MSB
BIT 6
BIT 5
1
2
3
INITIATION DELAY FROM WRITE SPDR TO TRANSFER BEGIN
BUS
CLOCK
WRITE
TO SPDR
BUS
CLOCK
EARLIEST LATEST
WRITE
TO SPDR
(SCK = INTERNAL CLOCK ∏ 2;
2 POSSIBLE START POINTS)
BUS
CLOCK
EARLIEST
WRITE
TO SPDR
(SCK = INTERNAL CLOCK ∏ 8;
8 POSSIBLE START POINTS)
LATEST
BUS
CLOCK
EARLIEST
WRITE
TO SPDR
(SCK = INTERNAL CLOCK ∏ 32;
32 POSSIBLE START POINTS)
LATEST
EARLIEST
(SCK = INTERNAL CLOCK ∏ 128;
128 POSSIBLE START POINTS)
LATEST
Figure 7. Transmission start delay (master)
13-spi
MOTOROLA
Serial Peripheral Interface Module (SPI)
MC68HC08AZ32
221