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GXM 数据表(PDF) 115 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 GXM
功能描述  Geode??GXm Processor Integrated x86 Solution with MMX Support
PDF  244 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

GXM 数据表(HTML) 115 Page - National Semiconductor (TI)

Back Button GXM Datasheet HTML 111Page - National Semiconductor (TI) GXM Datasheet HTML 112Page - National Semiconductor (TI) GXM Datasheet HTML 113Page - National Semiconductor (TI) GXM Datasheet HTML 114Page - National Semiconductor (TI) GXM Datasheet HTML 115Page - National Semiconductor (TI) GXM Datasheet HTML 116Page - National Semiconductor (TI) GXM Datasheet HTML 117Page - National Semiconductor (TI) GXM Datasheet HTML 118Page - National Semiconductor (TI) GXM Datasheet HTML 119Page - National Semiconductor (TI) Next Button
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Revision 3.1
115
www.national.com
Integrated Functions (Continued)
4.3.6
Memory Cycles
Figures 4-5 through Figure 4-8 on page 117 illustrate vari-
ous memory cycles that the memory controller supports.
The following subsections describe some of the sup-
ported cycles.
SDRAM Read Cycle
Figure 4-5shows aSDRAMreadcycle.The figure
assumes that a previous ACT command has presented
the row address for the read operation. Note that the burst
length for the READ command is always two.
Figure 4-5. Basic Read Cycle with a CAS Latency of Two
SDCLK
CS#
RAS#
CAS#
WE#
DQM
MD
MA
COL n
nn+1



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