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

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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
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4
RC6502 Apple 1 SBC/README.md
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@ -97,9 +97,9 @@ box around the pins that enable.
- Bottom pair shorted: Disable PIA. Connects `CS1` to ground. - Bottom pair shorted: Disable PIA. Connects `CS1` to ground.
- `RAM_EN` - `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`). 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` - `ROM_EN`
- Top pair shorted: Enable ROM. Connects ROM `C̅E̅`/`O̅E̅` to address - Top pair shorted: Enable ROM. Connects ROM `C̅E̅`/`O̅E̅` to address