MC68HC08AZ60 Datasheet, PDF (213/452 Pages) Motorola, Inc – Advance Information

Freescale Semiconductor, Inc.
Serial Peripheral Interface Module (SPI)
Pin Name and Register Name Conventions
Pin Name and Register Name Conventions
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 1 shows the full
names of the SPI I/O pins. The generic pin names appear in the text that
follows.
Table 1. Pin Name Conventions
SPI Generic Pin Name
MISO
MOSI
SS
SPSCK
Full SPI Pin Name
PTE5/MISO PTE6/MOSI PTE4/SS PTE7/SPSCK
The generic names of the SPI I/O registers are:
• SPI control register (SPCR)
• SPI status and control register (SPSCR)
• SPI data register (SPDR)
Table 2 shows the names and the addresses of the SPI I/O registers.
Table 2. I/O Register Addresses
Register Name
SPI Control Register (SPCR)
SPI Status and Control Register (SPSCR)
SPI Data Register (SPDR)
Address
$0010
$0011
$0012
3-spi
MOTOROLA
MC68HC08AZ60 — Rev 1.0
Serial Peripheral Interface Module (SPI)
213
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