ACIOCR3 (DDR_PHY) Register

Zynq UltraScale+ Devices Register Reference (UG1087)

Document ID
UG1087
Release Date
2024-03-13
Revision
1.10

ACIOCR3 (DDR_PHY) Register Description

Register NameACIOCR3
Offset Address0x000000050C
Absolute Address 0x00FD08050C (DDR_PHY)
Width32
TypemixedMixed types. See bit-field details.
Reset Value0x00000005
DescriptionAC I/O Configuration Register 3

ACIOCR3 (DDR_PHY) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
PAROEMODE31:30rwNormal read/write0x0SDRAM Parity Output Enable (OE) Mode Selection. Valid values
are:
2b00 = OE Dynamic
2b01 = OE always ON
2b10 = OE always OFF
2b11 = Reserved
BGOEMODE29:26rwNormal read/write0x0SDRAM Bank Group Output Enable (OE) Mode Selection. Bits [1:0]
for BG[0], bits [3:2] for BG[1]. Valid values are:
2b00 = OE Dynamic
2b01 = OE always ON
2b10 = OE always OFF
2b11 = Reserved
BAOEMODE25:22rwNormal read/write0x0SDRAM Bank Address Output Enable (OE) Mode Selection. Bits
[1:0] for BA[0], bits [3:2] for BA[1]. Valid values are:
2b00 = OE Dynamic
2b01 = OE always ON
2b10 = OE always OFF
2b11 = Reserved
A17OEMODE21:20rwNormal read/write0x0SDRAM A[17] Output Enable (OE) Mode Selection. Valid values are:
2b00 = OE Dynamic
2b01 = OE always ON
2b10 = OE always OFF
2b11 = Reserved
A16OEMODE19:18rwNormal read/write0x0SDRAM A[16] / RAS_n Output Enable (OE) Mode Selection. Valid
values are:
2b00 = OE Dynamic
2b01 = OE always ON
2b10 = OE always OFF
2b11 = Reserved
ACTOEMODE17:16rwNormal read/write0x0SDRAM ACT_n Output Enable (OE) Mode Selection (DDR4 only).
Valid values are:
2b00 = OE Dynamic
2b01 = OE always ON
2b10 = OE always OFF
2b11 = Reserved
Reserved15:8roRead-only0x0Reserved. Return zeros on reads.
CKOEMODE_RSVD 7:4roRead-only0x0Reserved. Return zeros on reads.
CKOEMODE 3:0rwNormal read/write0x5SDRAM CK Output Enable (OE) Mode Selection. Bits [1:0] for
CK[0], bits [3:2] for CK[1] etc. Valid values are:
2b00 = OE Dynamic
2b01 = OE always ON
2b10 = OE always OFF
2b11 = Reserved