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Bitfields for AMD-640 DRAM Type register

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Bit Description

7 - 6

reserved

5 - 4

type of DRAM in banks 4 and 5
00 - fast page mode (FPM)
01 - extended data out (EDO)
10 - reserved
11 - synchronous DRAM (SDRAM)

3 - 2

type of DRAM in banks 2 and 3
00 - fast page mode (FPM)
01 - extended data out (EDO)
10 - reserved
11 - synchronous DRAM (SDRAM)

1 - 0

type of DRAM in banks 0 and 1
00 - fast page mode (FPM)
01 - extended data out (EDO)
10 - reserved
11 - synchronous DRAM (SDRAM)

See Also:

#00983,#00989,#00990