MC68HC812A4 Datasheet, PDF (337/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

SS⁽¹⁾
OUTPUT
SCK
CPOL = 0
(OUTPUT
SCK
CPOL = 1
OUTPUT
MISO
INPUT
2
1
4
4
6
7
MSB IN⁽²⁾
BIT 6 . . . 1
12
13
LSB IN
MOSI
OUTPUT
10
MSB OUT⁽²⁾
10
BIT 6 . . . 1
LSB OUT
Notes:
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)
Electrical Characteristics
SPI Timing
5
3
11
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
Notes:
1. SS output mode (DDS7 = 1, SSOE = 1)
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB
5
12
3
13
LSB IN
MASTER LSB OUT
B) SPI Master Timing (CPHA = 1)
Figure 18-9. SPI Timing Diagram (1 of 2)
PORT DATA
Advance Information
MOTOROLA
Electrical Characteristics
MC68HC812A4 — Rev. 3.0
337