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MC9S12P128 Datasheet, PDF (528/564 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers
Electrical Characteristics
In Figure A-6 the timing diagram for master mode with transmission format CPHA=1 is depicted.
SS
(Output)
SCK
(CPOL = 0)
(Output)
SCK
(CPOL = 1)
(Output)
MISO
(Input)
1
2
4
4
5
6
MSB IN2
9
MOSI
(Output)
Port Data
Master MSB OUT2
12
12
Bit MSB-1. . . 1
11
Bit MSB-1. . . 1
13
3
13
LSB IN
Master LSB OUT
1.If configured as output
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1,bit 2... MSB.
Figure A-6. SPI Master Timing (CPHA = 1)
Port Data
S12P-Family Reference Manual, Rev. 1.12
528
Freescale Semiconductor