Rainbow Electronics W90P710CDG User Manual
Page 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