s908ab32ag0cfue Freescale Semiconductor, Inc, s908ab32ag0cfue Datasheet - Page 281

• Manufacturer Part Number: s908ab32ag0cfue
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

16.4 Pin Name Conventions and I/O Register Addresses
16.5 Functional Description
MC68HC908AB32
Freescale Semiconductor
Addr.
$0010
$0011
$0012
SPI Status and Control
Register Name
SPI Control Register
Register (SPSCR)
SPI Data Register
—
Rev. 1.1
(SPCR)
(SPDR)
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
pin names appear in the text that follows.
Figure 16-1
the structure of the SPI module.
Pin Names: SPI PTE5/MISO PTE6/MOSI PTE4/SS
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Full SPI
SPI Generic
Figure 16-1. SPI I/O Register Summary
Pin Names:
Serial Peripheral Interface Module (SPI)
SPRIE
Bit 7
SPRF
R7
T7
0
0
summarizes the SPI I/O registers and
= Unimplemented
ERRIE
Table 16-1. Pin Name Conventions
R6
T6
R
6
0
0
MISO
SPMSTR
OVRF
R5
T5
5
1
0
Unaffected by reset
MOSI
MODF
CPOL
R4
T4
4
0
0
Serial Peripheral Interface Module (SPI)
CPHA
SPTE
R3
T3
3
R
1
1
SS
Table
= Reserved
SPWOM
MODFEN
R2
T2
2
0
0
Figure 16-2
PTE7/SPSCK
16-1. The generic
SPSCK
SPR1
SPE
R1
T1
1
0
0
Technical Data
shows
CGND
SPTIE
Bit 0
SPR0
V
R0
T0
0
0
SS
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