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Altera_Forum
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12 years ago

implementing vhdl I2C MUX in CPLD VHDL

hi all , i need to implement i2c mux that consists of: 4 i2c masters 8 i2c slaves external hardwre can configure with master is going to be connected to one of the 8 slaves. The pr...
Altera_Forum's avatar
Altera_Forum
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12 years ago

The I2C allows 2 masters and 8 slaves on the same bus. Do your really need to have a "mux"?

Anyway, if you really do need, you can do it by making the CPLD logic track the state of the I2C transaction, so it can known what direction to use for SDA.