MC908GR32AVFAE Datasheet, PDF (290/314 Pages) Freescale Semiconductor, Inc – Microcontrollers

Electrical Specifications
SS
INPUT
SPSCK OUTPUT
CPOL = 0
SS PIN OF MASTER HELD HIGH
1
NOTE
4
SPSCK OUTPUT
CPOL = 1
NOTE
5
MISO
INPUT
MOSI
OUTPUT
MSB IN
11
MASTER MSB OUT
5
4
BITS 6–1
10
BITS 6–1
Note: This first clock edge is generated internally, but is not seen at the SPSCK pin.
a) SPI Master Timing (CPHA = 0)
6
7
LSB IN
11
MASTER LSB OUT
SS
INPUT
SPSCK OUTPUT
CPOL = 0
SS PIN OF MASTER HELD HIGH
1
5
4
SPSCK OUTPUT
CPOL = 1
5
4
MISO
INPUT
10
MOSI
OUTPUT
MSB IN
11
MASTER MSB OUT
BITS 6–1
10
BITS 6–1
NOTE
6
7
LSB IN
NOTE
MASTER LSB OUT
Note: This last clock edge is generated internally, but is not seen at the SPSCK pin.
b) SPI Master Timing (CPHA = 1)
Figure 20-2. SPI Master Timing
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
290
Freescale Semiconductor