56F801_1 Datasheet, PDF (13/48 Pages) Freescale Semiconductor, Inc – 16-bit Digital Signal Controllers

Serial Communications Interface (SCI) Signals
2.7 Serial Communications Interface (SCI) Signals
Table 2-9 Serial Communications Interface (SCI0) Signals
No. of
Pins
1
Signal
Name
TXD0
Signal
Type
Output
State During
Reset
Input
Signal Description
Transmit Data (TXD0)—SCI0 transmit data output
GPIOB0 Input/Output
Input
Port B GPIO—This pin is a General Purpose I/O (GPIO) pin that
can be individually programmed as an input or output pin.
1
RXD0
Input
Input
After reset, the default state is SCI output.
Receive Data (RXD0)—SCI0 receive data input
GPIOB1 Input/Output
Input
Port B GPIO—This pin is a General Purpose I/O (GPIO) pin that
can be individually programmed as an input or output pin.
After reset, the default state is SCI input.
2.8 Analog-to-Digital Converter (ADC) Signals
No. of
Pins
4
4
1
Signal
Name
ANA0-3
ANA4-7
VREF
Table 2-10 Analog to Digital Converter Signals
Signal
Type
Input
Input
Input
State During
Reset
Input
Input
Input
Signal Description
ANA0-3—Analog inputs to ADC, channel 1
ANA4-7—Analog inputs to ADC, channel 2
VREF—Analog reference voltage for ADC. Must be set to
V_DDA-0.3V for optimal performance.
2.9 Quad Timer Module Signals
Table 2-11 Quad Timer Module Signals
No. of
Pins
3
Signal
Name
TD0-2
Signal Type
Input/Output
State During
Reset
Input
Signal Description
TD0-2—Timer D Channel 0-2
Input/Output
GPIOA0-2
Input
Port A GPIO—This pin is a General Purpose I/O (GPIO) pin that
can be individually programmed as an input or output pin.
After reset, the default state is the quad timer input.
56F801 Technical Data, Rev. 17
Freescale Semiconductor
13