Electrical Specifications
SS
INPUT
3
1
SPCK, CPOL = 0
INPUT
151
4
4
5
2
SPCK, CPOL = 1
INPUT
9
8
MISO
INPUT
SLAVE MSB OUT
BITS 6–1
BITS 6–1
SLAVE LSB OUT
11
NOTE
11
6
7
10
MOSI
OUTPUT
MSB IN
LSB IN
Note: Not defined, but normally MSB of character just received
a) SPI Slave Timing (CPHA = 0)
SS
INPUT
1
SPCK, CPOL = 0
INPUT
5
4
5
2
3
SPCK, CPOL = 1
INPUT
4
10
9
8
MISO
INPUT
NOTE
SLAVE MSB OUT
BITS 6–1
BITS 6–1
SLAVE LSB OUT
11
6
7
10
MOSI
OUTPUT
MSB IN
LSB IN
Note: Not defined, but normally LSB of character previously transmitted
b) SPI Slave Timing (CPHA = 1)
Figure 19-2. SPI Slave Timing
Data Sheet
296
MC68HC908MR32 • MC68HC908MR16 — Rev. 6.0
MOTOROLA
Electrical Specifications
FREESCALE [ Freescale ]
