MC68HC705C8A_13 Datasheet, PDF (189/222 Pages) Freescale Semiconductor, Inc – Technical Data

Freescale Semiconductor, Inc.
Electrical Specifications
3.3-Volt Serial Peripheral Interface (SPI) Timing
SS
INPUT
SS pin of master held high.
SCK (CPOL = 0)
OUTPUT
NOTE
1
5
4
SCK (CPOL = 1)
OUTPUT
NOTE
5
4
12
12
MISO
INPUT
10
MOSI
OUTPUT
13
MSB IN
11
MASTER MSB OUT
BITS 6–1
10
BITS 6–1
Note: This first clock edge is generated internally, but is not seen at the SCK pin.
a) SPI Master Timing (CPHA = 0)
13
12
13
6
7
LSB IN
11
MASTER LSB OUT
12
SS
INPUT
SS pin of master held high.
SCK (CPOL = 0)
OUTPUT
1
13
5
4
SCK (CPOL = 1)
OUTPUT
12
5
4
MISO
INPUT
10
MOSI
OUTPUT
13
MSB IN
11
MASTER MSB OUT
BITS 6–1
10
BITS 6–1
Note: This last clock edge is generated internally, but is not seen at the SCK pin.
b) SPI Master Timing (CPHA = 1)
12
13
6
7
LSB IN
11
MASTER LSB OUT
12
NOTE
NOTE
Figure 13-8. SPI Master Timing
MC68HC705C8A — Rev. 3
MOTOROLA
Electrical Specifications
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Technical Data