GR8RAM/Documentation/Registers

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Addr Slinky GR8RAM TimeMachine
$0 RAddrL RAddrL RAddrL
$1 RAddrM RAddrM RAddrM
$2 RAddrH RAddrH RAddrH
$3 RData RData RData
$4 DMAAddrL
$5 DMAAddrH
$6
$7
$8
$9
$A
$B
$C
$D Readin/out Readin/out
$E Command Command
$F Bank Bank Bank
GR8RAM commands
CmdNum Description Argument
$00 SetReadinout RiNum/RoNum
$EF CFGPrgmEN don't care
$EE CFGEraseEN don't care
GR8RAM Readin
RiNum Description Data
$10 SPI flash { MOSI(1), X(6), CS(1) }
$11 SPI flash + clk pulse { MOSI(1), X(6), CS(1) }
$13 CFG flash + clk pulse { CFGDin(1), X(7) }
$20 Mode { RF/nSlinky(1), X(4), Size(3) }
$21 RAddrHH { X(7), RAddr[24](1) }
GR8RAM Readout
RoNum Description
$00 Magic $C1
$01 Card ID $00
$10 SPI flash { MISO(1), X(7) }
$20 Mode { RF/nSlinky(1), X(4), Size(3) }
TimeMachine commands
$XX DMA into Apple RAM Length
$XX DMA into Slinky RAM Length
$XX DMA into Apple RAM Length-256
$XX DMA into Slinky RAM Length-256