Apple-1-HW/RC6502-Apple-1-Replica
1
0
Fork 0
mirror of https://github.com/tebl/RC6502-Apple-1-Replica.git synced 2024-12-21 06:29:21 +00:00
Code Issues Projects Releases Wiki Activity

SBC/README: RAM_EN jumper is vertical on newer versions of the board

Browse Source 
Issue #29 from ea4eoz noted this, and I've confirmed myself that the latest
revision as of this commit (e395f27) has moved the jumper to a vertical
orientation with the lowest pin connected to Vcc.
This commit is contained in:
Curt J. Sampson 2021-12-07 18:18:46 +09:00
parent 69f95e462e
commit 6b8fa61b8c
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
RC6502 Apple 1 SBC/README.md
View File

@ -97,9 +97,9 @@ box around the pins that enable.
- Bottom pair shorted: Disable PIA. Connects `CS1` to ground.
- `RAM_EN`
- Left pair shorted: Enable RAM. Connects RAM `C̅S̅`/`O̅E̅` to address
- Left or upper pair shorted: Enable RAM. Connects RAM `C̅S̅`/`O̅E̅` to address
decoding logic (`CS_RAM`).
- Right pair shorted: Disable RAM. Connects RAM `C̅S̅`/`O̅E̅` to Vcc.
- Right or lower pair shorted: Disable RAM. Connects RAM `C̅S̅`/`O̅E̅` to Vcc.
- `ROM_EN`
- Top pair shorted: Enable ROM. Connects ROM `C̅E̅`/`O̅E̅` to address