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Atari C100339
Schematic
This is the most advanced version of the Supercart I have found. Not only does it have the slot for a second ROM or RAM chip, it has 8 solder jumpers for an even wider set configurations then the C300565 PCB. This version of the cart is documented in the Atari 7800 Software guide:
(Note: All memory sizes are in K-bits not K-bytes)
| U1 Desc | U4 Options | W1 |
W2 |
W3 |
W4 |
W5 |
W6 |
W7 |
W8 |
U5 |
U3 |
U2 |
512K ROM/EPROM |
Empty | -- |
++ |
-- |
++ |
-- |
-- |
-- |
-- |
++ |
++ |
++ |
| 16K/64K SRAM | -- |
++ |
-- |
++ |
-- |
-- |
-- |
-- |
++ |
++ |
++ |
|
| 128K ROM | -- |
++ |
-- |
++ |
-- |
-- |
-- |
-- |
++ |
++ |
++ |
|
| 1024K ROM/EPROM cs=low, banked |
Empty | -- |
++ |
-- |
-- |
++ |
-- |
-- |
-- |
++ |
++ |
++ |
| 16K/64K SRAM | -- |
++ |
-- |
-- |
++ |
-- |
-- |
-- |
++ |
++ |
++ |
|
| 128K ROM | -- |
++ |
-- |
-- |
++ |
-- |
-- |
-- |
++ |
++ |
++ |
|
| 256K ROM cs=high,not banked |
Empty | xx |
-- |
-- |
tt |
tt |
++ |
-- |
++ |
-- |
-- |
-- |
| 16K/64K SRAM | -- |
-- |
-- |
tt |
tt |
++ |
-- |
++ |
-- |
++ |
++ |
|
| 128K ROM cs0 | -- |
-- |
-- |
tt |
tt |
++ |
-- |
++ |
-- |
++ |
++ |
|
| 128K ROM cs1 | -- |
xx |
++ |
tt |
tt |
++ |
-- |
++ |
-- |
-- |
++ |
|
| 512K ROM (48K net) cs=low, not banked |
Empty | ++ |
++ |
-- |
++ |
-- |
-- |
++ |
++ |
-- |
-- |
++ |
| 256K ROM/EPROM cs=low,not banked |
Empty | -- |
++ |
-- |
++ |
-- |
-- |
-- |
++ |
-- |
++ |
-- |
| 16K/64K SRAM | -- |
++ |
-- |
++ |
-- |
-- |
-- |
++ |
-- |
++ |
++ |
|
| 128K ROM cs0 | -- |
++ |
-- |
++ |
-- |
-- |
-- |
++ |
-- |
++ |
++ |
|
| 128K ROM cs1 | not supported |
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Games used in:
Crossbow - W1:off W2:on W3:off W4:off W5:on W6:off W7:off W8:off Components: ALL
Desert Falcon - W1:on W2:off W3:off W4:on W5:off W6:ofi W7:on W8:on Components: U1, U2, Cl, C3
Donkey Kong - W1:on W2:off W3:off W4:on W5:off W6:ofi W7:on W8:on Components: U1, U2, Cl, C3
Donkey Kong Jr. - W1:on W2:off W3:off W4:on W5:off W6:off W7:on W8:on Components: U1, U2, Cl, C3
Hat Trick - W1:on W2:on W3:off W4:on W5:off W6:off W7:on W8:on Components: U1, U2, C1, C3
Mario Bros. - W1:on W2:off W3:off W4:on W5:off W6:off W7:on W8:on Components: U1, U2, C1, C3
Realsports Baseball - Wl:off W2:on W3:off W4:off W5:off W6:off W7:off W8:off ALL except Components: U4, C4