Rainbow-electronics W90P710CDG Manual do Utilizador descarregar pdf (Página 72)

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W90P710CD/W90P710CDG

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BITS DESCRIPTION

[31:19] BASADDR

Base address pointer of ROM/Flash bank

The start address is calculated as ROM/Flash bank base pointer << 18.

The base address pointer together with the “SIZE” bits constitutes the

whole address range of each bank.

[18:16] SIZE

The size of ROM/FLASH memory

SIZE [10:8] Byte

0 0 0 256K

0 0 1 512K

0 1 0 1M

0 1 1 2M

1 0 0 4M

1 0 1 8M

1 1 0 16M

1 1 1 RESERVED

[15:12] RESERVED

[11:8] tPA

Page mode access cycle time

tPA[11:8] MCLK tPA[11:8] MCLK

0 0 0 0 1 1 0 0 0 10

0 0 0 1 2 1 0 0 1 12

0 0 1 0 3 1 0 1 0 14

0 0 1 1 4 1 0 1 1 16

0 1 0 0 5 1 1 0 0 18

0 1 0 1 6 1 1 0 1 20

0 1 1 0 7 1 1 1 0 22

0 1 1 1 8 1 1 1 1 24

[7:4] tACC

Access cycle time

tACC[11:8] MCLK tACC[11:8] MCLK

0 0 0 0 1 1 0 0 0 10

0 0 0 1 2 1 0 0 1 12

0 0 1 0 3 1 0 1 0 14

0 0 1 1 4 1 0 1 1 16

0 1 0 0 5 1 1 0 0 18

0 1 0 1 6 1 1 0 1 20

0 1 1 0 7 1 1 1 0 22

0 1 1 1 8 1 1 1 1 24

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 551 552

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