Altera Arria II GX FPGA Development Board, 6G Edition - Manual (Page 55)

Chapter 2: Board Components 2–47
Memory
© July 2010 Altera Corporation Arria II GX FPGA Development Board, 6G Edition Reference Manual
Table 2–44 lists the SSRAM component reference and manufacturing information.
Flash
The flash interface consists of a single synchronous flash memory device, providing
64 Mbyte with a 16-bit data bus. This device is part of the shared FSM bus which
connects to the flash memory, SRAM, and MAX II CPLD EPM2210 System Controller.
There are two 512-Mbyte die per package. The parameter blocks are 32 K and main
blocks are 128 K. The parameters of this device are located at the top of the address
space.
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 270 µs for a single word and
310 µs for a 32-word buffer. The erase time is 800 ms for a 128 K main block.
Table 2–45 lists the flash pin assignments, signal names, and functions. The signal
names and types are relative to the Arria II GX device in terms of I/O setting and
direction.
Table 2–44. SSRAM Component Reference and Manufacturing Information
Board Reference Description Manufacturer
Manufacturing
Part Number
Manufacturer
Website
U22 Standard Synchronous Pipelined
SCD, 512K × 36, 200 MHz ISSI Inc. IS61VPS51236A-200B3 www.issi.com
Table 2–45. Flash Pin Assignments, Schematic Signal Names, and Functions (Part 1 of 2)
Board Reference Description Schematic Signal Name I/O Standard
Arria II GX Device
Pin Number
U23.A1 Address bus FSM_A1
2.5-V
J3
U23.B1 Address bus FSM_A2 D29
U23.C1 Address bus FSM_A3 J21
U23.D1 Address bus FSM_A4 L13
U23.D2 Address bus FSM_A5 C8
U23.A2 Address bus FSM_A6 N9
U23.C2 Address bus FSM_A7 D20
U23.A3 Address bus FSM_A8 A23
U23.B3 Address bus FSM_A9 B24
U23.C3 Address bus FSM_A10 C24
U23.D3 Address bus FSM_A11 E25
U23.C4 Address bus FSM_A12 F21
U23.A5 Address bus FSM_A13 J19
U23.B5 Address bus FSM_A14 H19
U23.C5 Address bus FSM_A15 K21
U23.D7 Address bus FSM_A16 L21
U23.D8 Address bus FSM_A17 F25