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MC68HC908AP16CFB Datasheet(PDF) 290 Page - Motorola, Inc

Part # MC68HC908AP16CFB
Description  Microcontrollers
PDF  440 Pages
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC68HC908AP16CFB Datasheet(HTML) 290 Page - Motorola, Inc

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Serial Peripheral Interface Module (SPI)
Data Sheet
MC68HC908AP Family — Rev. 2.5
290
MOTOROLA
15.3 Pin Name Conventions and I/O Register Addresses
The text that follows describes the SPI. The SPI I/O pin names are SS
(slave select), SPSCK (SPI serial clock), CGND (clock ground), MOSI
(master out slave in), and MISO (master in/slave out). The SPI shares
four I/O pins with four parallel I/O ports.
The full names of the SPI I/O pins are shown in Table 15-1. The generic
pin names appear in the text that follows.
Figure 15-1 summarizes the SPI I/O registers.
=
Table 15-1. Pin Name Conventions
SPI Generic
Pin Names:
MISO
MOSI
SS
SPSCK
CGND
Full SPI
Pin Names:
SPI PTC2/MISO
PTC3/MOSI
PTC4/SS
PTC5/SPSCK
VSS
Addr.
Register Name
Bit 7
654321
Bit 0
$0010
SPI Control Register
(SPCR)
Read:
SPRIE
R
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
R
= Reserved
Figure 15-1. SPI I/O Register Summary
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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