56F803 View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
Manufacturer
56F803 Datasheet PDF : 52 Pages
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2.7 Serial Peripheral Interface (SPI) Signals
No. of
Pins
1
1
1
1
Signal
Name
MISO
GPIOE6
MOSI
GPIOE5
SCLK
GPIOE4
SS
GPIOE7
Table 2-11 Serial Peripheral Interface (SPI) Signals
Signal
Type
Input/Out
put
State During
Reset
Input
Signal Description
SPI Master In/Slave Out (MISO)—This serial data pin is an input to a
master device and an output from a slave device. The MISO line of a
slave device is placed in the high impedance state if the slave device
is not selected.
Input/Out
put
Input
Port E GPIO—This General Purpose I/O (GPIO) pin can be
individually programmed as an input or output pin.
Input/Out
put
Input
After reset, the default state is MISO.
SPI Master Out/Slave In (MOSI)—This serial data pin is an output
from a master device and an input to a slave device. The master
device places data on the MOSI line a half-cycle before the clock
edge that the slave device uses to latch the data.
Input/Out
put
Input/Out
put
Input
Input
Port E GPIO—This General Purpose I/O (GPIO) pin can be
individually programmed as an input or output pin.
After reset, the default state is MOSI.
SPI Serial Clock—In master mode, this pin serves as an output,
clocking slaved listeners. In slave mode, this pin serves as the data
clock input.
Input/Out
put
Input
Port E GPIO—This General Purpose I/O (GPIO) pin can be
individually programmed as an input or output pin.
Input
Input
After reset, the default state is SCLK.
SPI Slave Select—In master mode, this pin is used to arbitrate
multiple masters. In slave mode, this pin is used to select the slave.
Input/Out
put
Input
Port E GPIO—This General Purpose I/O (GPIO) pin can be
individually programmed as an input or output pin.
After reset, the default state is SS.
56F803 Technical Data, Rev. 16
14
Freescale Semiconductor
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