參數(shù)資料
型號: 82815EM
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項-數(shù)據(jù)表參考
文件頁數(shù): 133/163頁
文件大?。?/td> 1049K
代理商: 82815EM
Intel
82815EM GMCH
R
Datasheet
133
4.11.2.
Memory Configurations
The following table gives a summary of the characteristics of memory configurations supported. The
GMCH2-M supports a 32-bit wide channel populated with a single row of 1Mx16 SDRAMs.
Table 18. Memory Size for each configuration:
SDRAM
SDRAM
SDRAM
# of
Address Size
DRAM
DRAM Size
Tech.
Density
Width
Banks Bank
Row
Column
Addressing
16 Mbit
1M
16
2
1
11
8
Asymmetric
4MB
16 Mbit
1M
32
The following figure shows the GMCH LMI connected to 4 MB of memory in a 32-bit SDRAM channel
configuration.
Figure 6. MCH2-M Display Cache Interface to 4MB
GMCH
(2) 1M x 16
SDRAM
L
L
L
L
L
L
L
L
L
L
disp_ca_interface
4.11.3.
Address Translation
The GMCH2-M contains address decoders that translate the address received by the display cache into
an effective display cache address. The LMA[11:0] bits are as defined in the following table. Entries in
the table (e.g., A21(X)) imply that the GMCH2-M puts out A21 on that MA line but it is not used by the
SDRAM.
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