MMC2107 - Freescale Semiconductor

Serial Peripheral Interface Module (SPI)
Freescale Semiconductor, Inc.
17.6 Signal Description
An overview of the signals is provided in Table 17-1.
Table 17-1. Signal Properties
Name Port Function (1)
Reset State
nc...
Freescale Semiconductor, I
17.6.1 MISO (Master In/Slave Out)
17.6.2 MOSI (Master Out/Slave In)
MISO SPIPORT0 Master data in/slave data out 0
MOSI SPIPORT1 Master data out/slave data in 0
SCK SPIPORT2 Serial clock 0
SS SPIPORT3 Slave select 0
1. The SPI ports (MISO, MOSI, SCK, and SS) are general-purpose I/O ports when the SPI is
disabled (SPE = 0).
MISO is one of the two SPI data pins.
In master mode, MISO is the data input. In slave mode, MISO is the data
output and is three-stated until a master drives the SS input pin low.
In bidirectional mode, a slave MISO pin is the SISO pin (slave in/slave
out).
In a multiple-master system, all MISO pins are tied together.
MOSI is one of the two SPI data pins.
In master mode, MOSI is the data output. In slave mode, MOSI is the
data input.
In bidirectional mode, a master MOSI pin is the MOMI pin (master
out/master in).
In a multiple-master system, all MOSI pins are tied together.
Technical Data MMC2107 – Rev. 2.0
374 Serial Peripheral Interface Module (SPI) MOTOROLA
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