mirror of
https://github.com/quorten/macsehw.git
synced 2024-06-16 19:29:42 +00:00
20 lines
840 B
Markdown
20 lines
840 B
Markdown
|
# Associated Documentation
|
||
|
|
|
||
|
|
These are references to useful reference documentation when working
|
||
|
|
with the BBU design, mostly datasheets. See `index.md` for links
|
||
|
|
with descriptions and `getsheets.sh` for a script to download them all
|
||
|
|
locally.
|
||
|
|
|
||
|
|
Also, it's helpful to consult the software pin assignments on the VIA
|
||
|
|
when working with the BBU, I've created `VIA.txt` as a quick reference
|
||
|
|
for this, so you don't have to read through several pages of _Guide to
|
||
|
|
the Macintosh family hardware_.
|
||
|
|
|
||
|
|
----------
|
||
|
|
|
||
|
|
Wondering what the cryptic D-P SAMI option in the Macintosh SE
|
||
|
|
schematics is? This has to do with the fact that row 1 and row 2 in
|
||
|
|
resistored versus jumpered Macintoshes behave differently. row 2
|
||
|
|
(SIMM 3 and 4) contains the larger RAM SIMMs in jumpered versions, row
|
||
|
|
1 (SIMM 1 and 2) contains the larger RAM SIMMs in resistored versions.
|