Datasheet

Serial Communications Interface (SCI) Signals
56F805 Technical Data, Rev. 16
Freescale Semiconductor 17
2.10 Serial Communications Interface (SCI) Signals
2.11 CAN Signals
Table 2-14 Serial Communications Interface (SCI0 and SCI1) Signals
No. of
Pins
Signal
Name
Signal
Type
State During
Reset
Signal Description
1 TXD0
GPIOE0
Output
Input/Output
Input
Input
Transmit Data (TXD0)—SCI0 transmit data output
Port E GPIO—This pin is a General Purpose I/O (GPIO) pin that
can individually be programmed as input or output pin.
After reset, the default state is SCI output.
1 RXD0
GPIOE1
Input
Input/Output
Input
Input
Receive Data (RXD0)— SCI0 receive data input
Port E GPIO—This pin is a General Purpose I/O (GPIO) pin that
can individually be programmed as input or output pin.
After reset, the default state is SCI input.
1 TXD1
GPIOD6
Output
Input/Output
Input
Input
Transmit Data (TXD1)—SCI1 transmit data output
Port D GPIO—This pin is a General Purpose I/O (GPIO) pin that
can individually be programmed as an input or output pin.
After reset, the default state is SCI output.
1 RXD1
GPIOD7
Input
Input/Output
Input
Input
Receive Data (RXD1)—SCI1 receive data input
Port D GPIO—This pin is a General Purpose I/O (GPIO) pin that
can individually be programmed as an input or output pin.
After reset, the default state is SCI input.
Table 2-15 CAN Module Signals
No. of
Pins
Signal
Name
Signal
Type
State During
Reset
Signal Description
1 MSCAN_ RX Input
(Schmitt)
Input MSCAN Receive Data—This is the MSCAN input. This pin has
an internal pull-up resistor.
1 MSCAN_ TX Output Output MSCAN Transmit Data—MSCAN output. CAN output is
open-drain output and a pull-up resistor is needed.