Timer; Jtag/Once Interface - Motorola DSP56367 User Manual

Table 2-13 Digital Audio Interface (DAX) Signals (Continued)
Signal
Type
Name
ADO Output
PD1 Input,
output, or
disconnected
2.12

TIMER

Signal Name Type
TIO0 Input or Output
2.13

JTAG/OnCE INTERFACE

Signal Signal
Name Type
TCK Input
MOTOROLA
State During Reset
GPIO 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 3.3V tolerant.
Table 2-14 Timer Signal
State during
Reset
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 to Vcc through a pull-up resistor in order to ensure a stable logic level at this
input.
This input is 3.3V tolerant.
Table 2-15 JTAG/OnCE Interface
State
during
Reset
Input Test Clock—TCK is a test clock input signal used to synchronize the JTAG test logic. It
has an internal pull-up resistor.
This input is 3.3V tolerant.
DSP56367
Signal/Connection Descriptions
Signal Description
Signal Description
Signal Description
Timer
2-21