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VCU118 Board User Guide
22
UG1224 (v1.0) December 15, 2016
Chapter 3:
Board Component Descriptions
DDR4 Component Memory
[
, callout 4]
The 2.5 GB DDR4 component memory system is comprised of two sets of five 256 Mb x 16
(80-bit wide) DDR4 SDRAM devices (Micron MT40A256M16GE-075E) located at U60-U64
(C1) and U135-U139 (C2). This dual memory system is connected in 80-bit wide interfaces
to the U1 XCVU9P HP banks 71, 72, 73 (C1) and 40, 41, 42 (C2). The DDR4 0.6V VTT
termination voltages (nets DDR4_C1_VTT and DDR4_C2_VTT) are sourced from the TI
TPS51200DR linear regulators U24 and U134. The DDR4 memory interface bank VREF pins
are not connected, which, coupled with an XDC set_property INTERNAL_VREF constraint,
invoke the INTERNAL VREF mode. The connections between the C1 80-bit interface DDR4
component memories and XCVU9P banks 71, 72, and 73 are listed in
.
Table 3-2:
DDR4 Memory 80-bit I/F C1 to FPGA U1 Banks 71, 72, and 73
FPGA (U1)
Pin
Schematic Net Name
I/O Standard
Component Memory
Pin #
Pin Name
Ref. Des.
F11
DDR4_C1_DQ0
POD12_DCI
G2
DQL0
U60
E11
DDR4_C1_DQ1
POD12_DCI
F7
DQL1
U60
F10
DDR4_C1_DQ2
POD12_DCI
H3
DQL2
U60
F9
DDR4_C1_DQ3
POD12_DCI
H7
DQL3
U60
H12
DDR4_C1_DQ4
POD12_DCI
H2
DQL4
U60
G12
DDR4_C1_DQ5
POD12_DCI
H8
DQL5
U60
E9
DDR4_C1_DQ6
POD12_DCI
J3
DQL6
U60
D9
DDR4_C1_DQ7
POD12_DCI
J7
DQL7
U60
R19
DDR4_C1_DQ8
POD12_DCI
A3
DQU0
U60
P19
DDR4_C1_DQ9
POD12_DCI
B8
DQU1
U60
M18
DDR4_C1_DQ10
POD12_DCI
C3
DQU2
U60
M17
DDR4_C1_DQ11
POD12_DCI
C7
DQU3
U60
N19
DDR4_C1_DQ12
POD12_DCI
C2
DQU4
U60
N18
DDR4_C1_DQ13
POD12_DCI
C8
DQU5
U60
N17
DDR4_C1_DQ14
POD12_DCI
D3
DQU6
U60
M16
DDR4_C1_DQ15
POD12_DCI
D7
DQU7
U60
D11
DDR4_C1_DQS0_T
DIFF_POD12_DCI
G3
DQSL_T
U60
D10
DDR4_C1_DQS0_C
DIFF_POD12_DCI
F3
DQSL_C
U60
P17
DDR4_C1_DQS1_T
DIFF_POD12_DCI
B7
DQSU_T
U60
P16
DDR4_C1_DQS1_C
DIFF_POD12_DCI
A7
DQSU_C
U60
G11
DDR4_C1_DM0
POD12_DCI
E7
DML_B/DBIL_B
U60
R18
DDR4_C1_DM1
POD12_DCI
E2
DMU_B/DBIU_B
U60
L16
DDR4_C1_DQ16
POD12_DCI
G2
DQL0
U61