Microcontrollers Data Sheet

Electrical Specifications
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
270 Freescale Semiconductor
Figure 19-1. SPI Master Timing
NOTE
SS PIN OF MASTER HELD HIGH
MSB IN
SS
INPUT
SPCK, CPOL = 0
OUTPUT
SPCK, CPOL = 1
OUTPUT
MISO
INPUT
MOSI
OUTPUT
NOTE
4
5
5
1
4
BITS 6–1 LSB IN
MASTER MSB OUT BITS 6–1 MASTER LSB OUT
10 11 10 11
76
NOTE
Note: This last clock edge is generated internally, but is not seen at the SCK pin.
SS PIN OF MASTER HELD HIGH
MSB IN
SS
INPUT
SPCK, CPOL = 0
OUTPUT
SPCK, CPOL = 1
OUTPUT
MISO
INPUT
MOSI
OUTPUT
NOTE
4
5
5
1
4
BITS 6–1 LSB IN
MASTER MSB OUT BITS 6–1 MASTER LSB OUT
10 11
10 11
76
a) SPI Master Timing (CPHA = 0)
b) SPI Master Timing (CPHA = 1)
Note: This first clock edge is generated internally, but is not seen at the SCK pin.