W90221X Winbond Electronics Corp America, W90221X Datasheet - Page 53

• Manufacturer Part Number: W90221X
• Description: Pa-risc Embedded Controller
• Manufacturer: Winbond Electronics Corp America

DRAM Bank 0/1 Configuration Register (DRAMCFG0/DRAMCFG1)
Port address: 0x00000030/34
W90221X version 0.6
Bits 0-2
Bits 3-5
Bit 6
0
8
0
1
DRAM Size
1
9
Size of DRAM bank 0/1
DRAM page size
The number of SDRAM component banks
Two banks
Four banks
DRAMCFG0/1
DRAMCFG0/1
10
2
[0:2]
[3:5]
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
Access type: read/write
11
3
Reserved
(# of address
1K Bytes (10)
2K Bytes (11)
4K Bytes (12)
256 Bytes (8)
512 Bytes (9)
DRAM Page Size
DRAM Size
Page Size
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
lines)
16M
1M
2M
4M
8M
12
4
13
5
COMPBK BANKEN
14
6
Default: 0x---
15
7
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