I2C data
From SpecNext Wiki
| Number | PortNumber::$113B |
|---|---|
| Decimal | NumberDec:: |
| Short desc. | ShortDesc::Sets and reads the I2C SDA line |
| Bit Mask | [[PortMask::%0001 0001 0011 1011 ??]] |
| Readable | Readable::Yes |
| Writable | Writable::Yes |
| Subsystem | Subsystem::I2C |
When write, it sets the SDA line, D0 --> SDA
When read, it reads the SDA line, SDA --> D0
Note that I2C uses open collector outputs, the idle, released state is '1'. So if you want to read the line, you have to set it to '1' first.