Rev. 0.52/Nov. 02 36
HY5PS12423(L)F
HY5PS12823(L)F
HY5PS121623(L)F
ON DIE TERMINATION - 2 Slot System Termination Matrix
Termination Matrix for Writes to DRAM
Termination Matrix for Read from DRAM
Configuration
Write to
Target DQ On Die Termination Resistance RTT
Controller
Module in Slot 1
Module in Slot 2
Rank1
Rank2
Rank1
Rank2
2R/2R
Slot 1
Infinite
Infinite
Infinite
75ohm
Infinite (note1)
Slot 2
Infinite
75ohm
Infinite (note1)
Infinite
Infinite
2R/1R
Slot 1
Infinite
Infinite
Infinite
75ohm
Unpopulated
Slot 2
Infinite
75ohm
Infinite (note1)
Infinite
Unpopulated
1R/2R
Slot 1
Infinite
Infinite
Unpopulated
75ohm
Infinite (note1)
Slot 2
Infinite
75ohm
Unpopulated
Infinite
Infinite
1R/1R
Slot 1
Infinite
Infinite
Unpopulated
75ohm
Unpopulated
Slot 2
Infinite
75ohm
Unpopulated
Infinite
Unpopulated
2R/Empty
Slot 1
Infinite
150ohm
Infinite
Unpopulated
Unpopulated
Empty/2R
Slot 2
Infinite
Unpopulated
Unpopulated
150ohm
Infinite
1R/Empty
Slot 1
Infinite
150ohm
Unpopulated
Unpopulated
Unpopulated
Empty/1R
Slot 2
Infinite
Unpopulated
Unpopulated
150ohm
Unpopulated
Configuration
Read from
Target DQ On Die Termination Resistance RTT
Controller
Module in Slot 1
Module in Slot 2
Rank1
Rank2
Rank1
Rank2
2R/2R
Slot 1
150ohm
Infinite
Infinite
75ohm
Infinite (note1)
Slot 2
150ohm
75ohm
Infinite (note1)
Infinite
Infinite
2R/1R
Slot 1
150ohm
Infinite
Infinite
75ohm
Unpopulated
Slot 2
150ohm
75ohm
Infinite (note1)
Infinite
Unpopulated
1R/2R
Slot 1
150ohm
Infinite
Unpopulated
75ohm
Infinite (note1)
Slot 2
150ohm
75ohm
Unpopulated
Infinite
Infinite
1R/1R
Slot 1
150ohm
Infinite
Unpopulated
75ohm
Unpopulated
Slot 2
150ohm
75ohm
Unpopulated
Infinite
Unpopulated
2R/Empty
Slot 1
75ohm
Infinite
Infinite
Unpopulated
Unpopulated
Empty/2R
Slot 2
75ohm
Unpopulated
Unpopulated
Infinite
Infinite
1R/Empty
Slot 1
75ohm
Infinite
Unpopulated
Unpopulated
Unpopulated
Empty/1R
Slot 2
75ohm
Unpopulated
Unpopulated
Infinite
Unpopulated
Note1 : Alternatively, the controller may use rank2 for termination instead of rank1