Qdr ii interface, Qdr ii interface –55 – Altera 100G Development Kit, Stratix V GX Edition User Manual

Page 63

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Chapter 2: Board Components

2–55

Components and Interfaces

August 2012

Altera Corporation

100G Development Kit, Stratix V GX Edition

Reference Manual

Table 2–36

lists the DDR3 interfaces component reference and manufacturing

information.

QDR II Interface

The QDR II interface consists of two 72-Mbit QDR II burst-of-two SRAM devices.
Port A has a 18-bit read data bus and a 18-bit write data bus while Port B has 36-bit
busses. The target speed is 300 MHz with a theoretical bandwidth of 10.8 Gbps for
Port A and 21.6 Gbps for Port B (total bandwidth of 32.4 Gbps or 64.8 Gbps for
simultaneous read and write).

Table 2–37

lists the pin assignments for the QDR II interface and their corresponding

schematic signal names and Stratix V GX pin numbers.

A2

DDR3F_DQ29

1.5-V SSTL

L32

Data bus

B8

DDR3F_DQ30

1.5-V SSTL

P34

Data bus

A3

DDR3F_DQ31

1.5-V SSTL

L33

Data bus

F3

DDR3F_DQS_P0

1.5-V SSTL

C34

Data strobe P byte lane 0

G3

DDR3F_DQS_N0

1.5-V SSTL

B34

Data strobe N byte lane 0

C7

DDR3F_DQS_P1

1.5-V SSTL

T33

Data strobe P byte lane 1

B7

DDR3F_DQS_N1

1.5-V SSTL

T32

Data strobe N byte lane 1

F3

DDR3F_DQS_P2

1.5-V SSTL

H35

Data strobe P byte lane 2

G3

DDR3F_DQS_N2

1.5-V SSTL

G35

Data strobe N byte lane 2

C7

DDR3F_DQS_P3

1.5-V SSTL

U35

Data strobe P byte lane 3

B7

DDR3F_DQS_N3

1.5-V SSTL

T35

Data strobe N byte lane 3

K1

DDR3F_ODT

1.5-V SSTL

B37

On-die termination

J3

DDR3F_RASN

1.5-V SSTL

K34

Row address select

T2

DDR3F_RSTN

1.5-V SSTL

N38

Reset

L3

DDR3F_WEN

1.5-V SSTL

V36

Write enable

Table 2–35. DDR3 Interface Pin Assignments, Schematic Signal Names, and Functions (Part 11 of 11)

Board

Reference

Schematic Signal

Name

I/O Standard

Stratix V GX

Device Pin Number

Description

Table 2–36. DDR3 interfaces Component Reference And Manufacturing Information

Board

Reference

Description

Manufacturer

Manufacturing

Part Number

Manufacturer

Website

U24-U29,

U31-U36

16 M × 16-bit × 8 banks, 667M, CL9
DDR3 device

Micron

MT41J128M16HA-125

www.micron.com

Table 2–37. QDR II Interface Pin Assignments, Schematic Signal Names, and Functions (Part 1 of 6)

Board

Reference

Schematic Signal

Name

I/O Standard

Stratix V GX

Device Pin Number

Description

QDRII Port A Interface (U41)

R9

QDR2A_A0

1.5-V HSTL

AP24

Address bus

R8

QDR2A_A1

1.5-V HSTL

AL24

Address bus

B4

QDR2A_A2

1.5-V HSTL

AR23

Address bus

B8

QDR2A_A3

1.5-V HSTL

BB26

Address bus

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