MC68HC08AZ0 Datasheet, PDF (221/444 Pages) Motorola, Inc – Advance Information

Freescale Semiconductor, Inc.
Serial Peripheral Interface Module (SPI)
Pin name conventions and I/O register addresses
Pin name conventions and I/O register addresses
The text that follows describes both SPI1 and SPI2. The SPI I/O pin
names are SS (slave select), SPSCK (SPI serial clock), V_SS (clock
ground), MOSI (master out slave in), and MISO (master in slave out).
The two SPIs share eight I/O pins with two parallel I/O ports. The full
names of the SPI I/O pins are as follows:
Table 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 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.
3-spi
MOTOROLA
Serial Peripheral Interface Module (SPI)
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MC68HC08AZ0
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