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Super H13SRA-(T)F User's Manual
DDR Bus Configuration
Processor CA Drive Strengths
Use this feature to set the drive strength for all CA0–13 IOs. The options are Auto,
120.0 Ohm, 60.0 Ohm, 40.0 Ohm, and 30.0 Ohm.
Processor DQ Drive Strengths
Use this feature to set the drive strength for all DQ and DMI IOs. The options are
Auto, High Impedance, 240 ohm, 120 ohm, 80 ohm, 60 ohm, 48 ohm, 40 ohm, and
34.3 ohm.
Processor ODT Impedance
Use this feature to set the ODT impedance for all DBYTE IOs. The options are Auto,
High Impedance, 480 ohm, 240 ohm, 160 ohm, 120 ohm, 96 ohm, 80 ohm, 68.6
ohm, 60 ohm, 53.3 ohm, 48 ohm, 43.6 ohm, 40 ohm, 36.9 ohm, 34.3 ohm, 32 ohm,
30 ohm, 28.2 ohm, 26.7 ohm, and 25.3 ohm.
Dram DQ Drive Strengths
Use this feature to set the Dram Pull-up and Pull-down output driver impedance for
all DQ and DMI IOs. The options are Auto, 48 ohm, 40 ohm, and 34 ohm.
Dram ODT Impedance RTT_NOM_WR
Use this feature to set the DRAM On-die termination impedance for RTT_NOM_WR.
The options are Auto, RTT_OFF, RZQ (240), RZQ/2 (120), RZQ/3 (80), RZQ/4 (60),
RZQ/5 (48), RZQ/6 (40), and RZQ/7 (34).
Dram ODT Impedance RTT_NOM_RD
Use this feature to set the DRAM On-die termination impedance for RTT_NOM_RD.
The options are Auto, RTT_OFF, RZQ (240), RZQ/2 (120), RZQ/3 (80), RZQ/4 (60),
RZQ/5 (48), RZQ/6 (40), and RZQ/7 (34).
Dram ODT Impedance RTT_WR
Use this feature to set the DRAM On-die termination impedance for RTT_WR. The
options are Auto, RTT_OFF, RZQ (240), RZQ/2 (120), RZQ/3 (80), RZQ/4 (60),
RZQ/5 (48), RZQ/6 (40), and RZQ/7 (34).
Dram ODT Impedance RTT_PARK
Use this feature to set the DRAM On-die termination impedance for RTT_PARK.
The options are Auto, RTT_OFF, RZQ (240), RZQ/2 (120), RZQ/3 (80), RZQ/4 (60),
RZQ/5 (48), RZQ/6 (40), and RZQ/7 (34).
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