Features and Options

Versal ACAP Technical Reference Manual (AM011)

Document ID
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1.5 English

The features and options along with the window mode activity is shown in the following table.

Table 1. SWDT Window Mode Features and Options
Features and Options Basic Window Mode Q&A Window Mode Notes
First window Closed window time period See Window Watchdog Timer Mode
Second window Open window time period
Interrupt generator Second window, reset request event pending, and wrong configuration Status in the Enable_and_Status register
Second Sequence Timer (SST) Delay with pending reset followed by reset Option, Second Sequence Timer section
Program sequence monitor (PSM) Simple handshake with software N/A Option, Basic Program Sequence Monitor section
Q&A token exchange N/A Complex handshake with software See Q&A Token Response Bits Table section
Fail Counter events Optional Always enabled See Fail Counter section
Incremented when:
  • Restart or disable attempted in first (closed) window
  • TSR mismatch
  • Second window timeout

Incremented when:

  • Token received early (wrong timing)
  • Token error (wrong content)
  • Time out (first or second window timeout)