MC68C812A4 Datasheet, PDF (17/18 Pages) Freescale Semiconductor, Inc – Technical Supplement MC68C812A4 3.3V Electrical Characteristics

Freescale Semiconductor, Inc.
SS ¹
(OUTPUT)
SCK
(CPOL = 0)
(OUTPUT)
SCK
(CPOL = 1)
(OUTPUT)
MISO
(INPUT)
MOSI
(OUTPUT)
2
1
4
4
6
7
MSB IN ²
10
MSB OUT ²
BIT 6 . . . 1
10
BIT 6 . . . 1
5
12
3
13
LSB IN
11
LSB OUT
1. SS output mode (DDS7 = 1, SSOE = 1).
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
A) SPI Master Timing (CPHA = 0)
SPI MASTER CPHA0
SS ¹
(OUTPUT)
SCK
(CPOL = 0)
(OUTPUT)
SCK
(CPOL = 1)
(OUTPUT)
MISO
(INPUT)
10
MOSI
(OUTPUT)
PORT DATA
1
2
4
4
6
7
MSB IN ²
MASTER MSB OUT ²
13
12
BIT 6 . . . 1
11
BIT 6 . . . 1
5
12
3
13
LSB IN
MASTER LSB OUT
PORT DATA
1. SS output mode (DDS7 = 1, SSOE = 1).
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
B) SPI Master Timing (CPHA = 1)
Figure 9 SPI Timing Diagram (1 of 2)
SPI MASTER CPHA1
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