MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 282

• Manufacturer Part Number: MC68HC908AB32
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

Serial Peripheral Interface Module (SPI)
Technical Data
282
RECEIVER/ERROR CPU INTERRUPT REQUEST
TRANSMITTER CPU INTERRUPT REQUEST
SPMSTR
DIVIDER
CLOCK
CGMOUT
FROM SIM
SPE
128
32
2
2
8
The SPI module allows full-duplex, synchronous, serial communication
between the MCU and peripheral devices, including other MCUs.
Software can poll the SPI status flags or SPI operation can be interrupt-
driven.
The following paragraphs describe the operation of the SPI module.
SPR1
Freescale Semiconductor, Inc.
Figure 16-2. SPI Module Block Diagram
SELECT
CLOCK
For More Information On This Product,
RESERVED
RESERVED
Serial Peripheral Interface Module (SPI)
SPR0
Go to: www.freescale.com
TRANSMIT DATA REGISTER
7
RECEIVE DATA REGISTER
CONTROL
6
SPI
SHIFT REGISTER
INTERNAL BUS
5
4
3
MODF
OVRF
SPRF
SPTE
SPMSTR
2
1
MODFEN
ERRIE
SPTIE
SPRIE
SPE
CLOCK
0
LOGIC
CPHA
R
CPOL
SPWOM
MC68HC908AB32
M
S
CONTROL
LOGIC
PIN
MOTOROLA
MISO
MOSI
SPSCK
SS
—
Rev. 1.0