W641GG2JB Datasheet, PDF (53/109 Pages) Winbond – 1-Gbit GDDR3 Graphics SDRAM

W641GG2JB
1-Gbit GDDR3 Graphics SDRAM
6.9 Extended Mode Register 3 (EMRS3)
All functions originally controlled by EMRS3 like alternate CL/WR, RDBI, WDBI and Multi-Cycle Preamble (MPR) shall be deleted or
deactivated, or shall be permanentely set (autocal enabled, nominal VINT).
6.10 Vendor Code and Revision ID
When the Vendor Code function is enabled by bit A10, the GDDR3 GRAPHICS SDRAM will provide the vendor code on DQ[3:0]
and the revision identification on DQ[7:4] as shown in Table.
The Revision ID shall be made programmable on a single metal layer (TBD).
6.10.1 Vendor ID Code
Default Revision ID (DQ7-DQ4)
0000
Manufacturer ID (DQ3-DQ0)
1000
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Publication Release Date: Apr, 22, 2011
Revision A01-002