Altera Cyclone IV GX FPGA Development Board Manuel d'utilisateur télécharger pdf (Page 52)

2–44 Chapter 2: Board Components

Memory

Cyclone IV GX FPGA Development Board May 2013 Altera Corporation

Reference Manual

Table 2–41 lists the SSRAM component reference and manufacturing information.

U44.9 Data bus

FSM_D7

1.8-V

AB22

U44.58 Data bus

FSM_D8

AE22

U44.62 Data bus

FSM_D9

AJ24

U44.19 Data bus

FSM_D10

Y19

U44.18 Data bus

FSM_D11

AH23

U44.69 Data bus

FSM_D12

AK22

U44.13 Data bus

FSM_D13

AH24

U44.8 Data bus

FSM_D14

Y18

U44.73 Data bus

FSM_D15

AJ13

U44.14

Flow Through or Pipeline mode;

active low

SSRAM_FTn

Pulled low

U44.31

Linear Burst Order mode; active

low

SSRAM_LBOn

Pulled low

U44.74

Ninth unused data bit for lower

byte lane

SSRAM_DQP0

Pulled low

U44.24

Ninth unused data bit for upper

byte lane

SSRAM_DQP1

Pulled low

U44.83

ADVn burst address counter

advance enable; active low

SSRAM_ADVn

Pulled high

U44.84

Address strobe (Processor,

Cache Controller); active low

SSRAM_ADSPn

Pulled high

U44.85

Address strobe (Processor,

Cache Controller); active low

SSRAM_ADSCn

Pulled low

U44.86 Output enable; active low

SSRAM_Gn

U44.87 Byte lane write enable

SSRAM_BWn

U44.89 Clock

SSRAM_CLK

F11

U44.98 Chip enable 1

SSRAM_E1n

U44.97 Chip enable 2

SSRAM_E2

Pulled high

U44.92 Chip enable 3

SSRAM_E3n

Pulled low

U44.93

Byte write enable for DQA Data

I/Os; active low

SSRAM_BAn

D13

U44.94

Byte write enable for DQB Data

I/Os; active low

SSRAM_BBn

D27

U44.64 Sleep enable

SSRAM_ZZ

Pulled low

Table 2–40. SSRAM Pin Assignments, Schematic Signal Names, and Functions (Part 2 of 2)

Board Reference Description

Schematic Signal Name

I/O Standard

Cyclone IV GX Device

Pin Number

Table 2–41. SSRAM Component Reference and Manufacturing Information

Board

Reference

Description Manufacturer

Manufacturing

Part Number

Manufacturer Website

U44

Standard Synchronous Pipelined

SCD, 2 M × 18, 200 MHz

GSI GS832018GT-200V www.gsitechnology.com

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 58 59 60

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