Zynq UltraScale+ Devices Register Reference > Module Summary > DDR_PHY Module > DX8SLbIOCR (DDR_PHY) Register

DX8SLbIOCR (DDR_PHY) Register

DX8SLbIOCR (DDR_PHY) Register Description

Register NameDX8SLbIOCR
Relative Address0x00000017F0
Absolute Address 0x00FD0817F0 (DDR_PHY)
Width32
TypewoWrite-only
Reset Value0x00000000
DescriptionDATX8 0-8 I/O Configuration Register

DX8SLbIOCR (DDR_PHY) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
Reserved31woWrite-only0Reserved. Return zeroes on reads.
DXDACRANGE30:28woWrite-only0PVREF_DAC REFSEL range select
Reserved27:25woWrite-only0reserved.
DXIOM24:22woWrite-only0I/O Mode: I/O Mode select
000 = DDR3, DDR3L, DDR3U mode
001 = CMOS mode
010 = DDR4, LPDDR3 mode
011 = Reserved
100 = LPDDR4 mode
101 = Reserved
110 = Reserved
111 = Reserved
Reserved21:11woWrite-only0reserved.
Reserved10:0woWrite-only0reserved.