Zynq UltraScale+ Devices Register Reference > Module Summary > DDR_PHY Module > MR11 (DDR_PHY) Register

MR11 (DDR_PHY) Register

MR11 (DDR_PHY) Register Description

Register NameMR11
Relative Address0x00000001AC
Absolute Address 0x00FD0801AC (DDR_PHY)
Width32
TypemixedMixed types. See bit-field details.
Reset Value0x00000000
DescriptionLPDDR4 Mode Register 11

MR11 (DDR_PHY) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
Reserved31:16roRead-only0x0Reserved. Return zeroes on reads.
RSVD_15_815:8roRead-only0x0Reserved. Return zeroes on reads.
RSVD_7 7rwNormal read/write0x0These are JEDEC reserved bits and are recommended by JEDEC to be programmed to 0x0.
CAODT 6:4rwNormal read/write0x0CA Bus Receiver On-Die-Termination
RSVD_3 3rwNormal read/write0x0These are JEDEC reserved bits and are recommended by JEDEC to be programmed to 0x0.
DQODT 2:0rwNormal read/write0x0DQ Bus Receiver On-Die-Termination

Alternate Register MR11_DDR3, reset=0x0
Alternate Register Field: RSVD Offset=0 Width=16 read-write
[[*]] Description: These are JEDEC reserved bits and are recommended by JEDEC to be programmed to 0x0.
Alternate Register Field: RESERVED_31_16 Offset=16 Width=16 read-only
[[*]] Description: Reserved. Return zeroes on reads.
Alternate Register Field: RSVD Offset=0 Width=16 read-write
[[*]] Description: These are JEDEC reserved bits and are recommended by JEDEC to be programmed to 0x0.
Alternate Register Field: RESERVED_31_16 Offset=16 Width=16 read-only
[[*]] Description: Reserved. Return zeroes on reads.
Alternate Register Field: RSVD Offset=0 Width=16 read-write
[[*]] Description: These are JEDEC reserved bits and are recommended by JEDEC to be programmed to 0x0.
Alternate Register Field: RESERVED_31_16 Offset=16 Width=16 read-only
[[*]] Description: Reserved. Return zeroes on reads.
Alternate Register Field: DQODT Offset=0 Width=2 read-write
[[*]] Description: On Die Termination. Valid values are
Alternate Register Field: PDCTL Offset=2 Width=1 read-write
[[*]] Description: Power Down control. Valid values are
Alternate Register Field: RSVD Offset=3 Width=5 read-write
[[*]] Description: These are JEDEC reserved bits and are recommended by JEDEC to be programmed to 0x0.
Alternate Register Field: RESERVED_31_8 Offset=8 Width=24 read-only
[[*]] Description: Reserved. Return zeroes on reads.