DSP56362 View Datasheet(PDF) - Freescale Semiconductor
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DSP56362 Datasheet PDF : 152 Pages
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Digital Audio Interface (DAX)
2.10 Digital Audio Interface (DAX)
Table 2-12 Digital Audio Interface (DAX) Signals
Signal
Name
Type
State During Reset
Signal Description
ACI
Input
Disconnected Audio Clock Input—This is the DAX clock input. When programmed
to use an external clock, this input supplies the DAX clock. The
external clock frequency must be 256, 384, or 512 times the audio
sampling frequency (256 × Fs, 384 × Fs or 512 × Fs, respectively).
PD0
Input, Output, or
Disconnected
Port D 0—When the DAX is configured as GPIO, this signal is
individually programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
ADO
PD1
Output
Input, Output, or
Disconnected
Disconnected
Digital Audio Data Output—This signal is an audio and non-audio
output in the form of AES/EBU, CP340 and IEC958 data in a biphase
mark format.
Port D 1—When the DAX is configured as GPIO, this signal is
individually programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
2.11 Timer
Table 2-13 Timer Signal
Signal
Name
Type
State During Reset
Signal Description
TIO0
Input or Output
Input
Timer 0 Schmitt-Trigger Input/Output—When timer 0 functions as
an external event counter or in measurement mode, TIO0 is used as
input. When timer 0 functions in watchdog, timer, or pulse modulation
mode, TIO0 is used as output.
The default mode after reset is GPIO input. This can be changed to
output or configured as a timer input/output through the timer 0
control/status register (TCSR0). If TIO0 is not being used, it is
recommended to either define it as GPIO output immediately at the
beginning of operation or leave it defined as GPIO input but connected
it to Vcc through a pull-up resistor in order to ensure a stable logic level
at the input.
This input is 5 V tolerant.
Freescale Semiconductor
DSP56362 Technical Data, Rev. 4
2-19
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