MC9S12C Datasheet, PDF (664/680 Pages) Motorola, Inc – 16-Bit Microcontroller

Appendix A Electrical Characteristics
SS¹
(OUTPUT)
SCK
(CPOL = 0)
(OUTPUT)
SCK
(CPOL = 1)
(OUTPUT)
MISO
(INPUT)
MOSI
(OUTPUT)
2
1
12
4
4
12
5
6
MSB IN²
10
MSB OUT²
BIT 6 . . . 1
9
BIT 6 . . . 1
13
13
LSB IN
LSB OUT
1. If configured as an output.
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
Figure A-6. SPI Master Timing (CPHA=0)
3
11
In Figure A-7 the timing diagram for master mode with transmission format CPHA=1 is depicted.
SS¹
(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 6 . . . 1
11
BIT 6 . . . 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 6, MSB.
Figure A-7. SPI Master Timing (CPHA=1)
PORT DATA
664
MC9S12C-Family / MC9S12GC-Family
Freescale Semiconductor
Rev 01.23