I2C clock: Difference between revisions
From SpecNext Wiki
Created page with "{{Port |Number=$3B10 |ShortDesc=Sets and reads the I2C SCL line. |Readable=No |Writable=No }}" |
mNo edit summary |
||
| (3 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
{{Port | {{Port | ||
|Number=$ | |Number=$103B | ||
|NumberDec=4155 | |||
|PortMask=%0001 0000 0011 1011 ?? | |||
|ShortDesc=Sets and reads the I2C SCL line. | |ShortDesc=Sets and reads the I2C SCL line. | ||
|Readable= | |Readable=Yes | ||
|Writable= | |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. | |||
Latest revision as of 11:01, 4 May 2020
| Port Number | $103B |
|---|---|
| Decimal | 4155 |
| 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.