W641GG2JB Datasheet, PDF (22/109 Pages) Winbond – 1-Gbit GDDR3 Graphics SDRAM

W641GG2JB
.2 Mirror Function
1-Gbit GDDR3 Graphics SDRAM
The GDDR3 GRAPHICS SDRAM provides a mirror function (MF) pin to change the physical location of the command and address
pins assisting in routing devices back to back. The MF ball should be tied directly to VSSQ or VDDQ depending on the control line
orientation desired. The pins affected by this Mirror Function mode are listed in Table . The CS1# and A12 pins are not affected
by Mirror Function.
6.2.1 Ball Assignment with Mirror Function
Signal
Ball MF=0 MF=1 Ball
F4 CAS# CS0# H3
F9 CS0# CAS# H4
G4 BA0 BA1 H9
G9 BA1 BA0 H10
H2
A1
A5 H11
Signal
MF=0 MF=1
RAS# BA2
CKE
WE#
WE#
CKE
BA2 RAS#
A5
A1
Ball
K2
K3
K4
K9
K10
Signal
MF=0 MF=1
A10 A8/AP
A2
A6
A0
A4
A4
A0
A6
A2
Signal
Ball MF=0 MF=1
K11 A8/AP A10
L4 A11
A7
L9
A7
A11
M4 A3
A9
M9 A9
A3
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Publication Release Date: Apr, 22, 2011
Revision A01-002