MOTOROLA
DSP56367
13-1
SECTION 13
TIMER/ EVENT COUNTER
13.1
INTRODUCTION
This section describes the internal timer/event counter in the DSP56367. Each of the three
timers (timer 0, 1 and 2) can use internal clocking to interrupt the DSP56367 or trigger DMA
transfers after a specified number of events (clocks). In addition, timer 0 provides external
access via the bidirectional signal TIO0.
When the TIO0 pin is configured as an input, timer 0 can count or capture events, or measure
the width or period of an external signal. When TIO0 is configured as an output, timer 0 can
function as a timer, a watchdog timer, or a pulse width modulator. TIO0 can also function as a
GPIO signal.
13.2
TIMER/EVENT COUNTER ARCHITECTURE
The timer module is composed of a common 21-bit prescaler and three independent general
purpose 24-bit timer/event counters, each having its own register set.
13.2.1
TIMER/EVENT COUNTER BLOCK DIAGRAM
Figure 13-1 shows a block diagram of the timer/event counter. This module includes a 24-bit
timer prescaler load register (TPLR), a 24-bit timer prescaler count register (TPCR), a 21-bit
prescaler clock counter, and three timers. Each of the three timers may use the prescaler clock
as its clock source.
Summary of Contents for DSP56367
Page 16: ...xvi MOTOROLA CONTENTS Paragraph Number Title Page Number ...
Page 22: ...xxii MOTOROLA List of Figures Figure Number Title Page Number ...
Page 26: ...xxvi MOTOROLA List of Tables Table Number Title Page Number ...
Page 148: ...4 6 DSP56367 MOTOROLA Design Considerations PLL Performance Issues ...
Page 248: ...9 30 DSP56367 MOTOROLA Serial Host Interface SHI Programming Considerations ...
Page 306: ...10 58 DSP56367 MOTOROLA Enhanced Serial Audio Interface ESAI ESAI Initialization Examples ...
Page 389: ...Bootstrap ROM Contents MOTOROLA DSP56367 A 15 end ...
Page 390: ...A 16 DSP56367 MOTOROLA Bootstrap ROM Contents ...
Page 432: ...C 8 DSP56367 MOTOROLA JTAG BSDL ...
Page 484: ...D 52 DSP56367 MOTOROLA Programmer s Reference ...
Page 490: ...E 6 DSP56367 MOTOROLA Power Consumption Benchmark ...
Page 516: ...F 26 DSP56367 MOTOROLA IBIS Model ...
Page 522: ...Index 6 MOTOROLA Index ...
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