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ZC702 Board User Guide
www.xilinx.com
17
UG850 (v1.2) April 4, 2013
Feature Descriptions
DDR3 Component Memory
[
Figure 1-2
, callout
2
]
The 1 GB, 32-bit wide DDR3 memory system is comprised of four 256 Mb x 8 SDRAMs
(Micron MT41J256M8HX-15E) at U66–U69. This memory system is connected to the
XC7Z020 AP SoC processing system (PS) memory interface bank 502. The DDR3 0.75V V
TT
termination voltage is sourced from linear regulator U22. The connections between the
DDR3 memory and XC7Z020 AP SoC bank 502 are listed in
Table 1-4
.
Table 1-4:
DDR3 Component Memory Connections to the XC7Z020 AP SoC
XC7Z020 (U1) Pin
Net Name
Component Memory
Pin Number
Pin Name
Reference
Designator
E3
PS_DDR3_DQ0
B3
DQ0
U66
C3
PS_DDR3_DQ1
C7
DQ1
U66
F2
PS_DDR3_DQ2
C2
DQ2
U66
D1
PS_DDR3_DQ3
C8
DQ3
U66
F1
PS_DDR3_DQ4
E3
DQ4
U66
E1
PS_DDR3_DQ5
E8
DQ5
U66
B2
PS_DDR3_DQ6
D2
DQ6
U66
D3
PS_DDR3_DQ7
E7
DQ7
U66
G2
PS_DDR3_DQ8
B3
DQ8
U67
L1
PS_DDR3_DQ9
C7
DQ9
U67
G1
PS_DDR3_DQ10
C2
DQ10
U67
K1
PS_DDR3_DQ11
C8
DQ11
U67
L3
PS_DDR3_DQ12
E3
DQ12
U67
L2
PS_DDR3_DQ13
E8
DQ13
U67
J1
PS_DDR3_DQ14
D2
DQ14
U67
K3
PS_DDR3_DQ15
E7
DQ15
U67
M1
PS_DDR3_DQ16
B3
DQ16
U68
T3
PS_DDR3_DQ17
C7
DQ17
U68
N3
PS_DDR3_DQ18
C2
DQ18
U68
T1
PS_DDR3_DQ19
C8
DQ19
U68
R3
PS_DDR3_DQ20
E3
DQ20
U68
T2
PS_DDR3_DQ21
E8
DQ21
U68
M2
PS_DDR3_DQ22
D2
DQ22
U68
R1
PS_DDR3_DQ23
E7
DQ23
U68
U1
PS_DDR3_DQ24
B3
DQ24
U69