MT9VDDF3272G-40B Micron Semiconductor Products, MT9VDDF3272G-40B Datasheet - Page 29

• Manufacturer Part Number: MT9VDDF3272G-40B
• Description: 256mb, 512mb X72, Ecc, Sr Pc3200 184-pin Ddr Rdimm
• Manufacturer: Micron Semiconductor Products

Figure 10:
pdf: 09005aef80f6ab6a, source: 09005aef80f6ab23
DDAF9C32_64x72_2.fm - Rev. C 7/05 EN
Initialization Flow Diagram
Step
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Configure Load Mode Register and reset DLL
Assert NOP or DESELECT commands for t RFC
Optional LMR command to clear DLL bit
Assert NOP or DESELECT for t MRD time
Assert NOP or DESELECT for t MRD time
Assert NOP or DESELECT for t MRD time
Assert NOP or DESELECT for t RFC time
DRAM is ready for any valid command
Bring CKE High with a NOP command
Assert NOP or DESELECT for t RP time
Assert NOP or DESELECT for t RP time
Configure Extended Mode Register
Issue AUTO REFRESH command
Issue AUTO REFRESH command
256MB, 512MB: (x72, ECC, SR) PC3200 184-Pin DDR RDIMM
CKE must be LVCMOS Low
Apply stable CLOCKs
V
Wait at least 200us
Apply V
DD
PRECHARGE ALL
PRECHARGE ALL
and V
REF
DD
and V
Q Ramp
TT
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©2003 Micron Technology, Inc. All rights reserved.
Initialization