GR8RAM/Documentation/Initialization Sequence
2021-05-08 10:16:39 -04:00

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Init sequence
LS SDRAM Flash IS
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$0000-$1FCE Nothing Nothing 0
$1FCF Init: Precharge Nothing 1
$1FD0-$1FFA Init: AREF Pause SPI Select 4
$1FFB Init: AREF Pause Dual Read (0x3B) 5
$1FFC Init: AREF Pause A[23:16] (0) 5
$1FFD Init: AREF Pause A[15:08] (FW in 14:13) 5
$1FFE Init: AREF Pause A[07:00] (0) 5
$1FFF Init: AREF Pause Dummy 5
$2000-$3FFF Init: Write ROM Shift MISO into WRD 6