mc68hc908as60 Freescale Semiconductor, Inc, mc68hc908as60 Datasheet - Page 262

• Manufacturer Part Number: mc68hc908as60
• Description: Mc68hc908as60 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Serial Peripheral Interface (SPI)
18.5 Functional Description
Technical Data
$0010
$0011
$0012
Addr.
SPI Status and Control
SPI Control Register
Register (SPSCR)
SPI Data Register
Register Name
See page 283.
See page 286.
See page 289.
(SPCR)
(SPDR)
Figure 18-1
the structure of the SPI module.
The SPI module allows full-duplex, synchronous, serial communication
among the MCU and peripheral devices, including other MCUs.
Software can poll the SPI status flags or SPI operation can be interrupt
driven. All SPI interrupts can be serviced by the CPU.
This subsection describes the operation of the SPI module.
Freescale Semiconductor, Inc.
Figure 18-1. SPI I/O Register Summary
For More Information On This Product,
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Serial Peripheral Interface (SPI)
SPRIE
SPRF
Bit 7
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summarizes the SPI I/O registers and
R7
T7
R
R
0
0
= Reserved
ERRIE
R6
T6
R
6
0
0
SPMSTR
OVRF
R5
T5
R
5
1
0
Unaffected by reset
MODF
CPOL
R4
T4
R
4
0
0
CPHA
SPTE
R3
T3
R
3
1
1
MC68HC908AS60 — Rev. 1.0
MODFEN
SPWOM
Figure 18-2
R2
T2
2
0
0
SPR1
SPE
R1
T1
1
0
0
shows
SPTIE
SPR0
Bit 0
R0
T0
0
0