Spartan-3A/3AN FPGA Starter Kit Board User Guide
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107
UG334 (v1.1) June 19, 2008
R
Chapter 13
DDR2 SDRAM
The Spartan
®
-3A/3AN FPGA Starter Kit board includes a 512 Mbit (32M x 16) Micron
Technology DDR2 SDRAM (MT47H32M16) with a 16-bit data interface, as shown in
Figure 13-1
.
Figure 13-1:
FPGA Interface to Micron 512 Mbit DDR2 SDRAM
UG334_c13_01_052407
See Table
SD_A<15:0>
(M3)
FPGA
SD_DQ<15:0>
SD_BA<2:0>
SD_RAS
A[12:0
]
BA[1:0]
DQ[15:0]
RAS#
Micron 512Mb
DDR2 SDRAM
SD_CAS
SD_WE
SD_CK_P
SD_CK_N
SD_CKE
SD_CS
SD_LDM
SD_UDM
SD_UDQS_P
SD_LDQS_N
CAS#
WE#
UDM
UDQS#
LDM
LDQS#
CS#
CK
CK#
CKE
See Table
See Table
(M4)
(N4)
(E3)
(K6)
(J3)
(K2)
(M5)
(N3)
(M2)
(M1)
(H4)
(J1)
VCCO_3
REG2
VREF
VDD
VDDQ
1.8V
0.9V
MT
4
7
H
3
2
M
1
6
(3
2
M
x
1
6
)
SSTL_18 Termination
SD_UDQS_N
UDQS
(J5)
(N1)
(T1)
(R6)
(H7)
(L8)
(T6)
VR
EF
_
3
SW2
SW1
5.0V
0.9V
LDO2
1.8V
SD_LDQS_P
LDQS
(K3)
SD_ODT
ODT
(P1)
SD_LOOP
(SSTL_18 Reference Voltage)
(H3)
(J8)
National
Semiconductor
LP3906
Regulator
(SSTL_18 Termination Voltage)
(DDR2 SDRAM Supply Voltage)
Содержание Spartan-3A DSP FPGA Series
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