MC9S12A128 MOTOROLA [Motorola, Inc], MC9S12A128 Datasheet - Page 80
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MC9S12A128
Manufacturer Part Number
MC9S12A128
Description
Microcontroller unit (MCU)
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC9S12A128.pdf
(92 pages)
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A.6 SPI
A.6.1 Master Mode
Figure A-5
(CPOL 1)
(CPOL 0)
(OUTPUT)
(OUTPUT)
(OUTPUT)
(OUTPUT)
(CPOL 0)
(CPOL 1)
1. If configured as output.
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
(INPUT)
(OUTPUT)
(OUTPUT)
(OUTPUT)
(OUTPUT)
MISO
1. If configured as output
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
(INPUT)
MOSI
SCK
SCK
SS
MISO
MOSI
SCK
SCK
SS
1
1
PORT DATA
and
Figure A-6
9
2
5
9
MSB IN
2
MSB OUT
MASTER MSB OUT
4
5
MSB IN
Figure A-5 SPI Master Timing (CPHA = 0)
Figure A-6 SPI Master Timing (CPHA =1)
2
6
4
1
illustrate the master mode timing. Timing values are shown in
2
2
1
6
4
2
4
BIT 6 . . . 1
BIT 6 . . . 1
9
12
11
10
BIT 6 . . . 1
BIT 6 . . . 1
LSB IN
11
LSB OUT
12
MASTER LSB OUT
12
MC9S12A128 Device Guide — V01.01
11
LSB IN
3
10
3
PORT DATA
Table
A-17.
80