Kane Industries C6713CPU - Manual (Page 42)

H ARDWARE R EFERENCE G UIDE
MICRO - LINE
®
C6713CPU
Date : 28 November 2005
Doc. no. : C6713CPU_HRG
Iss./Rev : 1.1
Page : 42
FSR0 / AFSR0:
This pin has a dual function:
• If configured for McBSP usage, this pin is the receiver frame sync input or output of
McBSP0. If frame synchronization is provided by an external device, FSR0 is an input. If
the frame synchronization signals are generated internally by processor's sample rate
generator, FSR0 is an output. If the receiver port function is not needed, FSR0 can also be
used as general purpose I/O pin.
• If configured for McASP usage, this pin is the receive frame sync or left/right clock of
McASP0.
FSR0 has a 22R series resistor. How to use this pin is described in [4], [6] and [7].
FSX0 / AFSX0:
This pin has a dual function:
• If configured for McBSP usage, this pins is the transmitter frame sync output or input of
McBSP0. If frame synchronization is provided by an external device, FSX0 is an input. If
the frame synchronization signals are generated internally by the processor's sample rate
generator, FSX0 is an output. If the transmitter port function is not needed, FSX0 can also
be used as general purpose I/O pin.
• If configured for McASP usage, this pin is the transmit frame sync or left/right clock of
McASP0.
FSX0 has a 22R series resistor. How to use this pin is described in [4], [6] and [7].
XF0, XF1:
These pins are dedicated general purpose digital input/output pins of the micro-line
® bus. They can
be programmed separately in order to function as outputs or inputs. For further information refer to
the description of the external flag register in chapter 3.10.6.
TOUT0 / AXR0[2]:
This pin has a dual function:
• If configured for timer usage, This pin is the output of timer 0. The timer output can e.g.
trigger an external A/D converter to start a conversion. If the timer clock output function is
not needed, the TOUT0 can also be used as general-purpose output.
• If configured for McASP usage, this pin is a bi-directional data line of McASP0.
See also chapter 7.2. TOUT0 has a 22R series resistor. How to use this pin is described in [4], [6]
and [7].
TOUT1 / AXR0[4]:
This pin has a dual function:
• If configured for timer usage, this pin is the output of timer 1. The timer output can e.g.
trigger an external A/D converter to start a conversion. If the timer clock output function is
not needed, the TOUT1 can also be used as general-purpose output.
• If configured for McASP usage, this pin is a bi-directional data line of McASP0.
See also chapter 7.2. TOUT1 has a 22R series resistor. How to use this pin is described in [4], [6]
and [7].