Hardware Information

The simplest Action Replay clone with SD2IEC support. The heart of MultiAction is Xilinx XC9572XL in vqfp64 package with - 32KB static RAM,
- 128KB Flash ROM,
- prototype only CortexM0 with SDcard
Skull: http://www.youtube.com/watch?v=KTf7LpTc4bM&feature=youtu.be
Werex: http://www.youtube.com/watch?v=gNU_iq08pqo&feature=plcp

Action Replay Mode

$DE00 (write only)

Bit (0) controls GAME line: 0 assert
Bit (1) controls EXROM line: 1 assert
Bit (2) controls ZAP internal signal, 1- turn OFF Action Replay Mode, switch to Memory Expansion
Bit (3) A13, ROM/RAM address line
Bit (4) A14, ROM/RAM address line
Bit (5) RamEnable internal signal, 0-ROM, 1-RAM
Bit (6) Freezer Reset (1) set after freeze
Bit (7) RamAllow internal signal, (1) allow RAM bank switching (8kB)

$DE01 (write only)

Bit (2) A15,ROM/RAM address line
Bit (3) A16,ROM/RAM address line
Bit (4) A17,ROM/RAM address line
Bit (5) A18,ROM/RAM address line

Flash Mode

Writing to register:

$de01 - MSB address of Flash ROM/RAM

bit (0 to 5) ⇒ address (A13 to A18)
Bit (7) - 0- normal mode, 1-ultimax mode

$E000 - $ffff

Flash ROM memory area in ultimax mode.

projekt64/multiaction.txt · ostatnio zmienione: 2013/01/15 14:01 przez kisiel
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