523 Latch test
523 : Latch test
- Author: htfab
- Description: Verify that $_DLATCH_N_ can be properly techmapped
- GitHub repository
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How it works
Provides a P latch and an N latch to test if they can be hardened correctly.
How to test
The P latch should transparently pass through P_D to P_Q when P_E is high and keep its state when P_E is low.
The N latch should transparently pass through N_D to N_Q when N_E is low and keep its state when N_E is high.
External hardware
None
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | p_e | p_q | |
| 1 | p_d | n_q | |
| 2 | n_e | ||
| 3 | n_d | ||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 |