Intel N450 AU80610004653AA User Manual
Product codes
AU80610004653AA
Datasheet
25
Functional Description
3
Functional Description
3.1
Integrated Memory Controller
The integrated memory controller supports DDR2 protocols with one 64 bit wide
channel accessing two SO-DIMMs. The controller supports a maximum of two un-
buffered, non-ECC DDR2 SO-DIMMs; thus allowing up to four device ranks.
channel accessing two SO-DIMMs. The controller supports a maximum of two un-
buffered, non-ECC DDR2 SO-DIMMs; thus allowing up to four device ranks.
3.1.1
System Memory Organization Modes
The integrated memory controller supports only one memory organization mode: single
channel. In this mode, all memory cycles are directed to a single channel.
channel. In this mode, all memory cycles are directed to a single channel.
3.1.2
System Memory Technology Supported
The system memory controller supports the following DDR2 Data Transfer Rates, SO-
DIMM Modules and DRAM Device Technologies:
DIMM Modules and DRAM Device Technologies:
•
DDR2 Data Transfer Rate: 667MT/s (PC2-5300)
•
DDR2 SO-DIMM Modules (unbuffered, non-ECC):
— Raw Card A = 2 Ranks of x16 SDRAMs (Double-sided)
— Raw Card C = 1 Rank of x16 SDRAMs (Single-sided)
“Single sided” above is a logical term referring to the number of Chip Selects attached
to the SO-DIMM. A real SO-DIMM may put the components on both sides of the
substrate, but be logically indistinguishable from single sided SO-DIMM if all
components on the SO-DIMM are attached to the same Chip Select signal.
to the SO-DIMM. A real SO-DIMM may put the components on both sides of the
substrate, but be logically indistinguishable from single sided SO-DIMM if all
components on the SO-DIMM are attached to the same Chip Select signal.
Note:
x16 means that each SDRAM component has 16 data lines.
•
DDR2 DRAM Device Technology:
— Standard 512Mb, 1Gb and 2Gb technologies and addressing are supported for
x16 devices. There is no support for SO-DIMMs with different technologies or
capacities on opposite sides of the same SO-DIMM. If one side of a SO-DIMM is
populated, the other side is either identical or empty.
capacities on opposite sides of the same SO-DIMM. If one side of a SO-DIMM is
populated, the other side is either identical or empty.
Table 3-16.Supported SO-DIMM Module Configurations (Sheet 1 of 2)
Raw Card
Tpye
DIMM
Capacity
DRAM
Device
Tech.
DRAM
Organization
# of DRAM
Devices
# of
Ranks
Page
Size
A
512MB
512Mb
32M x 16
8
2
8K
A
1GB
1Gb
64M x16
8
2
8K