21 SMT - Signal Measurement Timer

The SMT is a 24-bit counter with advanced clock and gating logic, which can be configured for measuring a variety of digital signal parameters such as pulse width, frequency and duty cycle, and the time difference between edges on two signals.

Features of the SMT include:
  • 24-bit timer/counter
  • Two 24-bit measurement capture registers
  • One 24-bit period match register
  • Multi-mode operation, including relative timing measurement
  • Interrupt on period match and acquisition complete
  • Multiple clock, signal and window sources

Below is the block diagram for the SMT module.

Figure 21-1. Signal Measurement Timer Block Diagram