MC56F836 Freescale Semiconductor, Inc, MC56F836 Datasheet - Page 27

• Manufacturer Part Number: MC56F836
• Description: 56f8300 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
Preliminary
(GPIOE5)
(GPIOE6)
(GPIOE7)
MOSI0
MISO0
Signal
Name
SS0
Table 2-2 Signal and Package Information for the 128-Pin LQFP (Continued)
Pin No.
126
125
123
Output
Output
Output
Output
Output
Input/
Input/
Input/
Input/
Input/
Type
Input
disabled,
pull-up is
output is
In reset,
enabled
enabled
enabled
During
56F8365 Technical Data, Rev. 7
pull-up
pull-up
Reset
Input,
Input,
State
SPI 0 Master Out/Slave In — 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 the slave device uses to latch the data.
Port E GPIO — This GPIO pin can be individually programmed as
an input or output pin.
After reset, the default state is MOSI0.
To deactivate the internal pull-up resistor, clear bit 5 in the
GPIOE_PUR register.
SPI 0 Master In/Slave Out — 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. The slave device places data on the MISO
line a half-cycle before the clock edge the master device uses to
latch the data.
Port E GPIO — This GPIO pin can be individually programmed as
an input or output pin.
After reset, the default state is MISO0.
To deactivate the internal pull-up resistor, clear bit 6 in the
GPIOE_PUR register.
SPI 0 Slave Select — SS0 is used in slave mode to indicate to
the SPI module that the current transfer is to be received.
Port E GPIO — This GPIO pin can be individually programmed as
an input or output pin.
After reset, the default state is SS0.
To deactivate the internal pull-up resistor, clear bit 7 in the
GPIOE_PUR register.
Signal Description
Signal Pins
27