The FRQ meter supports the following features:
- Number of counters and clock inputs configurable
- Configurable for one to eight counters
- Configurable for one to eight inputs per counter
- Allows up to 64 clock inputs
- APB Interface
- Supports byte operation
- Supports single cycle operations for non-APB interfacing
- Reference clock
- Reference clock selectable from JTAG or MSS Reference Clock
Input Source (100 MHz or 125MHz)
- Dual Mode operation
- Frequency mode allows measurement of frequency
- Time mode allows measurement of a time, for example PLL lock
time
- Maximum input frequency
- Driven by synthesis constraints
- The counter supports up to 625 MHz of operation
Following are list of clocks that can be measured using FRQ meter:
- MSS reference clock
- MSS CPU cores clock
- MSS AXI clock
- MSS AHB/APB clock
- MSS Peripheral clocks
- Fabric Interface Controller (FIC) clocks