Difference between revisions of "I2C clock"
From SpecNext official Wiki
m |
|||
| Line 1: | Line 1: | ||
{{Port | {{Port | ||
|Number=$103B | |Number=$103B | ||
| + | |ShortDesc=Sets and reads the I2C SCL line. | ||
| + | |Readable=Yes | ||
| + | |Writable=Yes | ||
| + | |Subsystem=I2C | ||
|PortMask=%0001 0000 0011 1011 ?? | |PortMask=%0001 0000 0011 1011 ?? | ||
| − | |||
| − | |||
| − | |||
}} | }} | ||
| + | When write, it sets the SCL line, D0 --> SCL | ||
| + | When read, it reads the SCL line, SCL --> 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. | ||
Revision as of 16:04, 6 December 2017
| Number | $103B |
|---|---|
| Decimal | |
| Short desc. | Sets and reads the I2C SCL line. |
| Bit Mask | %0001 0000 0011 1011 ?? |
| Readable | Yes |
| Writable | Yes |
| Subsystem | I2C |
When write, it sets the SCL line, D0 --> SCL When read, it reads the SCL line, SCL --> 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.