Bits 7:6 – OPU[1:0] On-Die Termination (ODT)
Pull-Up Calibration Status
Similar status encodings as
ZPD.
Bits 5:4 – OPD[1:0] On-Die Termination
(ODT) Pull-Down Calibration Status
Similar status encodings as
ZPD.
Bits 3:2 – ZPU[1:0] Output Impedance
Pull-Up Calibration Status
Similar status encodings as
ZPD.
Bits 1:0 – ZPD[1:0] Output Impedance
Pull-Down Calibration Status
Valid status encodings are
shown below.
Value
Description
0
Completed with no errors
1
Overflow error
2
Underflow error
3
Underflow error
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