Datasheet

310
310
RTICLK
310
310
310
External
control
CAP eventsource0
CAP eventsource1
=
Upcounter
Capture
upcounter
Compare
upcounter
Freerunningcounter
Capture
RTIFRCx
freerunningcounter
RTICAFRCx
OVLINTx
RTICPUCx
RTIUCx
RTICAUCx
ToCompare
Unit
TMS570LS0432
TMS570LS0332
SPNS186A –OCTOBER 2012–REVISED SEPTEMBER 2013 www.ti.com
4.16 Real Time Interrupt Module
The real-time interrupt (RTI) module provides timer functionality for operating systems and for
benchmarking code. The RTI module can incorporate several counters that define the timebases needed
for scheduling an operating system.
The timers also allow you to benchmark certain areas of code by reading the values of the counters at the
beginning and the end of the desired code range and calculating the difference between the values.
4.16.1 Features
The RTI module has the following features:
• Two independent 64 bit counter blocks
• Four configurable compares for generating operating system ticks. Each event can be driven by either
counter block 0 or counter block 1.
• Fast enabling/disabling of events
• Two time-stamp (capture) functions for system or peripheral interrupts, one for each counter block
4.16.2 Block Diagrams
Figure 4-12 shows a high-level block diagram for one of the two 64-bit counter blocks inside the RTI
module. Both the counter blocks are identical.
Figure 4-12. Counter Block Diagram
56 System Information and Electrical Specifications Copyright © 2012–2013, Texas Instruments Incorporated
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