Texas Instruments Hercules TMS570LS04x/03x LaunchPad Evaluation Kit LAUNCHXL-TMS57004 LAUNCHXL-TMS57004 数据表
产品代码
LAUNCHXL-TMS57004
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
SPNS186A – OCTOBER 2012 – REVISED SEPTEMBER 2013
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.
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.
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.
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
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
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