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M68ICS08GR Datasheet(PDF) 299 Page - Freescale Semiconductor, Inc

Part # M68ICS08GR
Description  M68HC08 Microcontrollers
PDF  408 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

M68ICS08GR Datasheet(HTML) 299 Page - Freescale Semiconductor, Inc

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Serial Peripheral Interface (SPI)
Functional Description
MC68HC908GR8 — Rev 4.0
Technical Data
MOTOROLA
Serial Peripheral Interface (SPI)
299
The full names of the SPI I/O pins are shown in Table 20-1. The generic
pin names appear in the text that follows.
20.5 Functional Description
Figure 20-1 summarizes the SPI I/O registers and Figure 20-2 shows the
structure of the SPI module.
Table 20-1. Pin Name Conventions
SPI Generic
Pin Names:
MISO
MOSI
SS
SPSCK
CGND
Full SPI
Pin Names:
SPI
PTD1/ATD9
PTD2/ATD1
0
PTD0/AT
D8
PTD3/ATD11
V
SS
Addr.
Register Name
Bit 7
654321
Bit 0
$0010
SPI Control Register
(SPCR)
Read:
SPRIE
DMAS
SPMSTR
CPOL
CPHA
SPWOM
SPE
SPTIE
Write:
Reset:
00101000
$0011
SPI Status and Control
Register (SPSCR)
Read:
SPRF
ERRIE
OVRF
MODF
SPTE
MODFEN
SPR1
SPR0
Write:
Reset:
00001000
$0012
SPI Data Register
(SPDR)
Read:
R7
R6
R5
R4
R3
R2
R1
R0
Write:
T7
T6
T5
T4
T3
T2
T1
T0
Reset:
Unaffected by reset
= Unimplemented
Figure 20-1. SPI I/O Register Summary
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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