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Xilinx MIcroblaze Development Spartan-3E 1600E User Manual

Page 109

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MicroBlaze Development Kit Spartan-3E 1600 Edition User Guide

107

UG257 (v1.1) December 5, 2007

www.xilinx.com

DDR SDRAM Connections

R

Data

SD_DQ15

H5

Data input/output

SD_DQ14

H6

SD_DQ13

G5

SD_DQ12

G6

SD_DQ11

F2

SD_DQ10

F1

SD_DQ9

E1

SD_DQ8

E2

SD_DQ7

M6

SD_DQ6

M5

SD_DQ5

M4

SD_DQ4

M3

SD_DQ3

L4

SD_DQ2

L3

SD_DQ1

L1

SD_DQ0

L2

Contr

ol

SD_BA1

K6

Bank address inputs

SD_BA0

K5

SD_RAS

C1

Command inputs

SD_CAS

C2

SD_WE

D1

SD_CK_N

J4

Differential clock input

SD_CK_P

J5

SD_CKE

K3

Active-High clock enable input

SD_CS

K4

Active-Low chip select input

SD_UDM

J1

Data Mask. Upper and Lower data masks

SD_LDM

J2

SD_UDQS

G3

Data Strobe. Upper and Lower data strobes

SD_LDQS

L6

SD_CK_FB

B9

SDRAM clock feedback into top DCM
within FPGA. Used by some DDR SDRAM
controller cores

Table 13-1:

FPGA-to-DDR SDRAM Connections (Continued)

Category

DDR SDRAM

Signal Name

FPGA Pin

Number

Function