MC68HC08AZ32A Datasheet, PDF (229/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Serial Peripheral Interface (SPI)
Pin Name Conventions and I/O Register Addresses
16.4 Pin Name Conventions and I/O Register Addresses
The generic names of the SPI input/output (I/O) pins are:
• SS (slave select)
• SPSCK (SPI serial clock)
• MOSI (master out slave in)
• MISO (master in slave out)
The SPI shares four I/O pins with a parallel I/O port. The full name of an
SPI pin reflects the name of the shared port pin. Table 16-1 shows the
full names of the SPI I/O pins. The generic pin names appear in the text
that follows.:
Table 16-1. Pin Name Conventions
SPI Generic Pin Names:
Full SPI Pin Names: SPI
MISO
PTE5/MISO
MOSI
PTE6/MOSI
SS
PTE4/SS
SCK
V_SS
PTE7/SPSCK CGND
Table 16-2. I/O Register Addresses
Register name
SPI Control Register (SPICR)
SPI Status and Control Register (SPISCR)
SPI Data Register (SPIDR)
Register address
$0010
$0011
$0012
The generic pins names appear in the text that follows.
MC68HC08AZ32A — Rev 1.0
MOTOROLA
Serial Peripheral Interface (SPI)
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Technical Data
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