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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 888
UG585 (v1.11) September 27, 2016
Appendix B: Register Details
Register PHY_Config0 to PHY_Config3 Details
Register (ddrc) phy_init_ratio0
Name Address
PHY_Config0 0xf8006118
PHY_Config1 0xf800611c
PHY_Config2 0xf8006120
PHY_Config3 0xf8006124
Field Name Bits Type Reset Value Description
reg_phy_dq_offset 30:24 rw 0x40 Offset value from DQS to DQ. Default value: 0x40
(for 90 degree shift).
This is only used when reg_phy_use_wr_level=1.
#Note: When a port width (W) is multiple of N
instances of Ranks or Slices, each instance will get
W/N bits. Instance n will get (n+1)*(W/N) -1: n
(W/N) bits where n (0, 1, to N-1) is the instance
number of Rank or Slice.
reserved 23:15 rw 0x0 Reserved. Do not modify.
reserved 14:6 rw 0x0 Reserved. Do not modify.
reserved 5 rw 0x0 Reserved. Do not modify.
reserved 4 rw 0x0 Reserved. Do not modify.
reg_phy_wrlvl_inc_mo
de
3rw0x0 reserved
reg_phy_gatelvl_inc_m
ode
2rw0x0 reserved
reg_phy_rdlvl_inc_mo
de
1rw0x0 reserved
reg_phy_data_slice_in_
use
0 rw 0x1 Data bus width selection for Read FIFO RE
generation. One bit for each data slice.
0: read data responses are ignored.
1: data slice is valid.
Note: The Phy Data Slice 0 must always be
enabled.
Name phy_init_ratio0
Relative Address 0x0000012C
Absolute Address 0xF800612C
Width 20 bits
Access Type rw