W90220F Winbond Electronics Corp America, W90220F Datasheet - Page 27

• Manufacturer Part Number: W90220F
• Description: Pa-risc Embedded Controller
• Manufacturer: Winbond Electronics Corp America

The above information is the exclusive intellectual property of Winbond Electroncs Corp. and shall not be dsiclosed or distributed or reproduced without permission from
Winbond.
27
Bit 4
Bits 5-7 Size of ROM bank 1
ROM Configuration_1 Register (ROMconf1)
Index : 0x09
Bit 0
Bits 1-3 Size of ROM bank 2
Bit 4
ROMen2
0
Enable ROM bank 1
(The definition is the same as ROMconf0[1:3])
Enable ROM bank 2
(The definition is the same as ROMconf0[1:3])
Enable ROM bank 3
( "*Basic unit" may be "byte", "halfword" or "word" which is
defined in ROMconf2[0:7] )
ROMconf0[1:3]
0 = Disable
1 = Enable
0 = Disable
1 = Enable
0 = Disable
1 = Enable
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
1
ROM bank_2 size
Read/Write
2
ROM size (*Basic unit)
3
128K
256K
512K
16M
64K
1M
2M
4M
ROMen3
4
Power-on Default : 0x0
5
ROM bank_3 size
6
7
W90220F
Version 0.84