Bandai 2001: Difference between revisions
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The Bandai 2001 (LUXSOR) is one of the two mappers used in WonderSwan cartridges. | The Bandai 2001 (LUXSOR) is one of the two mappers used in WonderSwan cartridges. | ||
In addition to the normal [[Mapper]] banking interface, | In addition to the normal [[Mapper]] banking interface, the 2001 adds three registers for interacting with a Microwire [[EEPROM]] which may optionally be present on the cartridge board: | ||
{| class="wikitable" | {| class="wikitable" | ||
| Line 13: | Line 13: | ||
! rowspan="5" | External EEPROM | ! rowspan="5" | External EEPROM | ||
! rowspan="2" | $C4 | ! rowspan="2" | $C4 | ||
| rowspan="2" | External EEPROM Data | | rowspan="2" | [[EEPROM#Cartridge EEPROM Data|External EEPROM Data]] | ||
| rowspan="2" style="text-align: right" | <tt style="white-space: nowrap">dddd dddd dddd dddd</tt> | | rowspan="2" style="text-align: right" | <tt style="white-space: nowrap">dddd dddd dddd dddd</tt> | ||
| R16 | | R16 | ||
| Line 22: | Line 22: | ||
|- | |- | ||
! $C6 | ! $C6 | ||
| External EEPROM Command | | [[EEPROM#Cartridge EEPROM Command|External EEPROM Command]] | ||
| style="text-align: right" | <tt style="white-space: nowrap">0001 CCaa aaaa aaaa</tt><br/>or <tt style="white-space: nowrap">0000 01CC aaaa aaaa</tt><br/> or <tt style="white-space: nowrap">0000 0001 CCaa aaaa</tt> | | style="text-align: right" | <tt style="white-space: nowrap">0001 CCaa aaaa aaaa</tt><br/>or <tt style="white-space: nowrap">0000 01CC aaaa aaaa</tt><br/> or <tt style="white-space: nowrap">0000 0001 CCaa aaaa</tt> | ||
| RW16 | | RW16 | ||
| Line 28: | Line 28: | ||
|- | |- | ||
! rowspan=2|$C8 | ! rowspan=2|$C8 | ||
| External EEPROM Control | | [[EEPROM#Cartridge EEPROM Control|External EEPROM Control]] | ||
| style="text-align: right" | <tt style="white-space: nowrap">ASWR ....</tt> | | style="text-align: right" | <tt style="white-space: nowrap">ASWR ....</tt> | ||
| W8 | | W8 | ||
| Abort (A), Short (S), Write (W), Read (R) | | Abort (A), Short (S), Write (W), Read (R) | ||
|- | |- | ||
| External EEPROM Status | | [[EEPROM#Cartridge EEPROM Status|External EEPROM Status]] | ||
| style="text-align: right" | <tt style="white-space: nowrap">.... ..rd</tt> | | style="text-align: right" | <tt style="white-space: nowrap">.... ..rd</tt> | ||
| R8 | | R8 | ||
| Line 39: | Line 39: | ||
|- | |- | ||
|} | |} | ||
Latest revision as of 18:44, 23 April 2025
The Bandai 2001 (LUXSOR) is one of the two mappers used in WonderSwan cartridges.
In addition to the normal Mapper banking interface, the 2001 adds three registers for interacting with a Microwire EEPROM which may optionally be present on the cartridge board:
| Category | Port | Description | Bits | Type | Notes |
|---|---|---|---|---|---|
| External EEPROM | $C4 | External EEPROM Data | dddd dddd dddd dddd | R16 | Data read (d) |
| W16 | Data to write (d) | ||||
| $C6 | External EEPROM Command | 0001 CCaa aaaa aaaa or 0000 01CC aaaa aaaa or 0000 0001 CCaa aaaa |
RW16 | Command and address | |
| $C8 | External EEPROM Control | ASWR .... | W8 | Abort (A), Short (S), Write (W), Read (R) | |
| External EEPROM Status | .... ..rd | R8 | Ready (r), Done (d) |
