Table 2-14 Triple Timer Signals - Motorola DSP56305 User Manual

24-bit digital signal processor
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Signal
Type
Name
TIO0
Input or
Output
TIO1
Input or
Output
TIO2
Input or
Output
MOTOROLA

Table 2-14 Triple Timer Signals

State During
Reset
Stop
Input
Disconnected
Input
Disconnected
Input
Disconnected
DSP56305 User's Manual
Signal/Connection Descriptions
Signal Description
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).
This input is 5 V tolerant.
Timer 1 Schmitt-Trigger Input/Output—
When Timer 1 functions as an external event
counter or in Measurement mode, TIO1 is used
as input. When Timer 1 functions in Watchdog,
Timer, or Pulse Modulation mode, TIO1 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 1
Control/Status Register (TCSR1).
This input is 5 V tolerant.
Timer 2 Schmitt-Trigger Input/Output—
When Timer 2 functions as an external event
counter or in Measurement mode, TIO2 is used
as input. When Timer 2 functions in Watchdog,
Timer, or Pulse Modulation mode, TIO2 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 2
Control/Status Register (TCSR2).
This input is 5 V tolerant.
Timers
2-37

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