rtd DM5816, User Manual

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DM5816/DM6816 RTD Embedded Technologies, Inc.
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Chapter 6 – Timer/Counters
This chapter explains the 8254 timer/counter circuit on the DM5816.
An 8254 programmable interval timer provides three 16-bit, 8-MHz timers for timing and counting functions
such as frequency measurement, event counting, and interrupts. These timer/counters can be configured
in a number of ways to support your application. Figure 6-1 shows a block diagram of the timer/counter
circuitry.
Fig. 6-1 – 8254 Timer/Counter Circuit Block Diagram