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Altera Stratix IV GX FPGA Development Board User Manual

Page 69

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Chapter 2: Board Components

2–61

Memory

August 2012

Altera Corporation

Stratix IV GX FPGA Development Board

Reference Manual

This 16-bit data memory interface can sustain burst read operations at up to 52 MHz
for a throughput of 832 Mbps. The write performance is 125 µs for a single word and
440 µs for a 32-word buffer. The erase time is 400 ms for a 32 K parameter block and
1200 ms for a 128 K main block.

Table 2–56

lists the flash pin assignments, signal names, and functions. The signal

names and types are relative to the Stratix IV GX device in terms of I/O setting and
direction.

Table 2–56. Flash Pin Assignments, Schematic Signal Names, and Functions (Part 1 of 2)

Board Reference

Description

Schematic Signal Name

I/O Standard

Stratix IV GX

Device

Pin Number

U32.B6

Address bus (die select)

FSM_A25

2.5-V

AP30

U32.H8

Address bus

FSM_A24

2.5-V

AN30

U32.G1

Address bus

FSM_A23

2.5-V

AL31

U32.A8

Address bus

FSM_A22

2.5-V

AK31

U32.C8

Address bus

FSM_A21

2.5-V

AR32

U32.C7

Address bus

FSM_A20

2.5-V

AP32

U32.B7

Address bus

FSM_A19

2.5-V

AH29

U32.A7

Address bus

FSM_A18

2.5-V

AG29

U32.D8

Address bus

FSM_A17

2.5-V

AR35

U32.D7

Address bus

FSM_A16

2.5-V

AP35

U32.C5

Address bus

FSM_A15

2.5-V

AL32

U32.B5

Address bus

FSM_A14

2.5-V

AK32

U32.A5

Address bus

FSM_A13

2.5-V

AU33

U32.C4

Address bus

FSM_A12

2.5-V

AT33

U32.D3

Address bus

FSM_A11

2.5-V

AH30

U32.C3

Address bus

FSM_A10

2.5-V

AJ31

U32.B3

Address bus

FSM_A9

2.5-V

AR34

U32.A3

Address bus

FSM_A8

2.5-V

AT34

U32.C2

Address bus

FSM_A7

2.5-V

AE27

U32.A2

Address bus

FSM_A6

2.5-V

AD27

U32.D2

Address bus

FSM_A5

2.5-V

AP34

U32.D1

Address bus

FSM_A4

2.5-V

AN33

U32.C1

Address bus

FSM_A3

2.5-V

AD26

U32.B1

Address bus

FSM_A2

2.5-V

AC26

U32.A1

Address bus

FSM_A1

2.5-V

AP33

U32.E7

Data bus

FSM_D16

2.5-V

C33

U32.G7

Data bus

FSM_D15

2.5-V

N31

U32.H5

Data bus

FSM_D14

2.5-V

M31

U32.F5

Data bus

FSM_D13

2.5-V

C32

U32.F4

Data bus

FSM_D12

2.5-V

B32

U32.F3

Data bus

FSM_D11

2.5-V

J32