Kane Industries C6713CPU - Manual (Page 41)

H ARDWARE R EFERENCE G UIDE
MICRO - LINE
®
C6713CPU
Date : 28 November 2005
Doc. no. : C6713CPU_HRG
Iss./Rev : 1.1
Page : 41
DR0 / AXR0[0]:
This pin has a dual function:
• If configured for McBSP usage, this pin is the data receive input of McBSP0. All incoming
data from devices connected to the McBSP is communicated via this input pin. If the
receiver port function is not needed, DR0 can also be used as general purpose input.
• If configured for McASP usage, this pin is a bi-directional data line of McASP0.
DR0 has a 22R series resistor. How to use this pin is described in [4], [6] and [7].
DX0 / AXR0[1]:
This pin has a dual function:
• If configured for McBSP usage, this pin is the data transmit output of McBSP0. All outgoing
data to devices connected to the McBSP is communicated via this output pin. If the
transmitter port function is not needed, DX0 can also be used as general purpose output.
• If configured for McASP usage, this pin is a bi-directional data line of McASP0.
DX0 has a 22R series resistor. How to use this pin is described in [4], [6] and [7].
CLKR0 / ACLKR0:
This pin has a dual function:
• If configured for McBSP usage, this pin is the receiver clock input or output of McBSP0.
The receiver clock signal can be either supplied by an external clock or can be provided
internally and then supplied to the pin. If the receiver port function is not needed, CLKR0
can also be used as general purpose I/O pin.
• If configured for McASP usage, this pin is the receive bit clock of McASP0.
CLKR0 has a 22R series resistor. How to use this pin is described in [4], [6] and [7].
CLKX0 / ACLKX0:
This pin has a dual function:
• If configured for McBSP usage, this pin is the transmitter clock output or input of McBSP0.
This transmitter clock can either be supplied by an external clock or can be provided
internally and then supplied to the pin. If the transmitter port function is not needed, CLKX0
can also be used as general purpose I/O pin.
• If configured for McASP usage, this pin is the transmit bit clock of McASP0.
CLKX0 has a 22R series resistor. How to use this pin is described in [4], [6] and [7].