dsp56362 Freescale Semiconductor, Inc, dsp56362 Datasheet - Page 25

• Manufacturer Part Number: dsp56362
• Description: Dsp56362 24-bit Audio Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

2.10
2.11
Freescale Semiconductor
Signal
Signal
Name
Name
TIO0
ADO
PD0
PD1
ACI
Digital Audio Interface (DAX)
Timer
Input, Output, or
Input, Output, or
Input or Output
Disconnected
Disconnected
Output
Type
Type
Input
Table 2-12 Digital Audio Interface (DAX) Signals
State During Reset
State During Reset
Disconnected
Disconnected
Input
DSP56362 Technical Data, Rev. 4
Table 2-13 Timer Signal
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).
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.
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.
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.
Signal Description
Signal Description
Digital Audio Interface (DAX)
2-19