~ruther/vhdl-i2c

ref: f69689aa2b3270d54c1ee6f63dbe7370a9f6c500 vhdl-i2c/src/utils/open_drain_buffer.vhd -rw-r--r-- 710 bytes
fix: activate pad_io in open drain on enable = 1
feat: add utility entities

Delay, metastability filter, open drain buffer, synchronous edge detector
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