Datasheet

Electrical Characteristics
MCF51AC256 ColdFire Microcontroller Data Sheet, Rev.7
Freescale Semiconductor 37
Figure 15. SPI Master Timing (CPHA = 0)
Figure 16. SPI Master Timing (CPHA =1)
SPSCK
(OUTPUT)
SPSCK
(OUTPUT)
MISO
(INPUT)
MOSI
(OUTPUT)
SS
1
(OUTPUT)
MSB IN
2
BIT 6 . . . 1
LSB IN
MSB OUT
2
LSB OUT
BIT 6 . . . 1
(CPOL = 0)
(CPOL = 1)
NOTES:
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
1. SS
output mode (DDS7 = 1, SSOE = 1).
1
2 3
4
5
6
9 10
11
12
4
9
SPSCK
(OUTPUT)
SPSCK
(OUTPUT)
MISO
(INPUT)
MOSI
(OUTPUT)
MSB IN
(2)
BIT 6 . . . 1
LSB IN
MASTER MSB OUT
(2)
MASTER LSB OUT
BIT 6 . . . 1
PORT DATA
(CPOL = 0)
(CPOL = 1)
PORT DATA
SS
(1)
(OUTPUT)
1. SS output mode (DDS7 = 1, SSOE = 1).
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
NOTES:
2
1
12
11
3
4 4
11
12
5
6
9 10