Preliminary
GS4288C09/18/36L
Mode Register Definition in Nonmultiplexed Address Mode
Address Bus
A17 ... A10 A9 A8 A7 A6 A5 A4 A3 A2 A1
A0
17–10
9
8
7
6
5
4
3
2
1
0
Mode Register (Mx)
1
2
Reserved
ODT IM DLL NA AM
BL
Config
M2 M1 M0
Configuration
On Die
M9
Termination
3
0
0
0
1 (default)
0
1
Off (default)
On
3
0
0
0
1
0
1
1
0
1
0
1
0
1
2
3
M8
Drive Impedance
M7
DLL Reset
3
4
5
0
1
Internal 50 (default)
4
0
1
DLL reset (default)
1
1
1
0
1
1
1
0
1
5
External (ZQ)
DLL enabled
Reserved
Reserved
M5
0
Address MUX
Nonmulitplexed (default)
Multiplexed
Burst
Length
M4
M3
0
0
1
1
0
1
0
1
2 (default)
1
4
8
Reserved
Notes:
1. A10–A17 must be set to zero; A18–An = “Don’t Care”.
2. A6 not used in MRS.
3. BL = 8 is not available.
4. DLL RESET turns the DLL off.
5. +/–30% over rated temperature range.
Rev: 1.02 3/2013
17/62
© 2011, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GSI [ GSI TECHNOLOGY ]
