Functional Description
This address multiplexing scheme is derived from Table 4-11 which depicts the addressing
requirements for each of the row/column organizations for each row size. The SDRAM
components used for the options shown in the table are as follows:
Option
SDRAM Component Type
2Mx8
2 (16MB)
3 (32MB)
4 (64MB)
5 (128MB)
4Mx16 or 4Mx4 (Registered DIMM only)
8Mx8
16Mx4 (Registered DIMM only)
Note: Both 4Mx4 and 16Mx4 SDRAM devices are supported in the form of Registered DIMMs only.
Table 4-10. Supported Memory Configurations
DRAM
Addressing
DRAM
Size
DRAM Attributes
DRAM DIMM
MA
Min
(1 row)
Type
EDO
Tech
4M
Depth Width SS x64 DS x64
Row
Col Banks
1M
1M
2M
2M
2M
4M
4M
4M
4M
4M
4M
8M
16M
2M
2M
4M
4M
4M
8M
16M
4
4
1M
1M
2M
2M
2M
4M
4M
4M
4M
4M
4M
8M
16M
2M
2M
4M
4M
4M
8M
16M
2M
2M
4M
4M
4M
8M
8M
8M
8M
8M
8M
16M
32M
4M
4M
8M
8M
8M
16M
32M
Symmetric
Asymmetric
Asymmetric
Asymmetric
Asymmetric
Symmetric
Asymmetric
Asymmetric
Symmetric
Asymmetric
Asymmetric
Asymmetric
Symmetric
Asymmetric
Asymmetric
Asymmetric
Asymmetric
Asymmetric
Asymmetric
Asymmetric
10
11
11
12
13
11
12
14
11
12
14
12
12
12
13
12
14
14
14
14
10
9
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
2
8 MB
8 MB
EDO
16M
8
10
9
16 MB
16 MB
16 MB
32 MB
32 MB
32 MB
32 MB
32 MB
32 MB
64 MB
128 MB
16 MB
16 MB
32 MB
32 MB
32 MB
64 MB
128 MB
8
8
8
4
11
10
8
4
4
EDO
64M
16
16
16
8
11
10
8
11
12
9
4
SDRAM 16M
SDRAM 64M
8
8
8
2
4
10
8
2
4
2
16
8
8
4
4 bank
9
4
4
10
4
82443BX Host Bridge Datasheet
4-21
ETC [ ETC ]
