MC68HC908AS32A Datasheet, PDF (265/280 Pages) Freescale Semiconductor, Inc – Microcontrollers

SS
(INPUT)
SCK (CPOL = 0)
(INPUT)
SCK (CPOL = 1)
(INPUT)
MISO
(INPUT)
MOSI
(OUTPUT)
5.0 Vdc ± 0.5 V Serial Peripheral Interface (SPI) Timing
1
4
2
5
8
SLAVE MSB OUT
6
7
MSB IN
151
4
BITS 6–1
10
11
BITS 6–1
3
SLAVE LSB OUT
11
LSB IN
9
NOTE
NOTE: Not defined but normally MSB of character just received
a) SPI Slave Timing (CPHA = 0)
SS
(INPUT)
SCK (CPOL = 0)
(INPUT)
SCK (CPOL = 1)
(INPUT)
8
MISO
(OUTPUT)
MOSI
(INPUT)
2
NOTE
1
5
4
5
4
10
SLAVE MSB OUT
6
7
MSB IN
BITS 6–1
10
11
BITS 6–1
3
9
SLAVE LSB OUT
LSB IN
NOTE: Not defined but normally LSB of character previously transmitted
b) SPI Slave Timing (CPHA = 1)
Figure 19-2. SPI Slave Timing Diagram
MC68HC908AS32A Data Sheet, Rev. 2.0
Freescale Semiconductor
265