Intel i5-2510E FF8062700853304 User Manual

Product codes
FF8062700853304
Page of 181
Datasheet
21
Interfaces
2.1.2
System Memory Timing Support
The IMC supports the following DDR3 Speed Bin, CAS Write Latency (CWL), and 
command signal mode timings on the main memory interface:
• tCL = CAS Latency
• tRCD = Activate Command to READ or WRITE Command delay
• tRP = PRECHARGE Command Period
• CWL = CAS Write Latency
• Command Signal modes = 1n indicates a new command may be issued every clock 
and 2n indicates a new command may be issued every two clocks. Command 
launch mode programming depends on the transfer rate and memory 
configuration.
NOTES:
1.
System memory timing support is based on availability and is subject to change.
2.1.3
System Memory Organization Modes
The IMC supports two memory organization modes, single-channel and dual-channel. 
Depending upon how the SO-DIMM Modules are populated in each memory channel, a 
number of different configurations can exist.
2.1.3.1
Single-Channel Mode
In this mode, all memory cycles are directed to a single-channel. Single-channel mode 
is used when either Channel A or Channel B SO-DIMM connectors are populated in any 
order, but not both.
2.1.3.2
Dual-Channel Mode - Intel® Flex Memory Technology Mode
The IMC supports Intel Flex Memory Technology Mode. This mode combines the 
advantages of the Dual-Channel Symmetric (Interleaved) and Dual-Channel 
Asymmetric Modes. Memory is divided into a symmetric and an asymmetric zone. The 
symmetric zone starts at the lowest address in each channel and is contiguous until the 
asymmetric zone begins, or until the top address of the channel with the smaller 
capacity is reached. In this mode, the system runs with one zone of dual-channel mode 
and one zone of single-channel mode, simultaneously, across the whole memory array.
Table 3.
DDR3 System Memory Timing Support
Transfer 
Rate 
(MT/s)
tCL 
(tCK)
tRCD 
(tCK)
tRP
(tCK)
CWL 
(tCK)
CMD Mode
Notes
800
6
6
6
5
1n
1
1066
7
7
7
6
1n
1
8
8
8