MC68HC08AZ32A Datasheet, PDF (230/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Serial Peripheral Interface (SPI)
16.5 Functional Description
Figure 16-1 summarizes the SPI I/O registers and Figure 16-2 show the
structure of the SPI module.
Register name
R/W Bit 7 6
5
4
3
2
1 Bit 0
Read:
SPI Control Register (SPCR)
SPRIE R SPMSTR CPOL CPHA SPWOM SPE SPTIE
Write:
Reset: 0
0
1
0
1
0
0
0
SPI Status and Control Register
(SPSCR)
Read: SPRF
Write:
ERRIE
OVRF
MODF
SPTE
MODFEN SPR1 SPR0
Reset: 0
0
0
0
1
0
0
0
Read: R7 R6
R5
R4 R3
R2
R1 R0
SPI Data Register (SPDR)
Write: T7 T6
T5
T4
T3
T2
T1 T0
Reset:
Unaffected by reset
R = Reserved
= Unimplemented
Figure 16-1. SPI I/O Register Summary
Technical Data
230
MC68HC08AZ32A — Rev 1.0
Serial Peripheral Interface (SPI)
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