diff --git a/index.html b/index.html index 8a260f13fa9a6f909caacf706afd3e55010945aa..e62e1e54db4bd74408944d4e069e372dc7438d22 100644 --- a/index.html +++ b/index.html @@ -330,9 +330,22 @@ Let's deconstruct that: `0x5E` is, in binary `01011110`, and the bits start (0-indexed) from the right (least significant bit). -The last four bits are about the clock selection, and their default `0010` stands for the 8MHz internal RC oscillator as source of the clock. +Or in a table: -In our program above, we're using `1110`, which we can understand by looking at the section on the clock (chapter 6, notably [page 24](http://fab.cba.mit.edu/classes/863.09/people/ryan/week5/ATtiny44%20Data%20Sheet.pdf#page=24)): +| `CKDIV8` | 0 | +| -------- | - | +| `CKOUT` | 1 | +| `SUT1` | 0 | +| `SUT0` | 1 | +| `CKSEL3` | 1 | +| `CKSEL2` | 1 | +| `CKSEL1` | 1 | +| `CKSEL0` | 0 | + + +The last four bits are about the clock selection, and their default value `0010` stands for the 8MHz internal RC oscillator as source of the clock. + +In our program above, we're using `1110`, which we can understand by looking at the section on the clock (chapter 6, notably [page 24](http://fab.cba.mit.edu/classes/863.09/people/ryan/week5/ATtiny44%20Data%20Sheet.pdf#page=24), or just *search* for the fuse names):