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2–48
Chapter 2: Board Components
Memory
Arria II GX FPGA Development Board Reference Manual
February 2011
Altera Corporation
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.
The parameter blocks are 32 K and main blocks are 128 K. The blocks are located at
the bottom 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 2–46
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 2–46. 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
U23.A7
Address bus
FSM_A18
F26
U23.B7
Address bus
FSM_A19
G23
U23.C7
Address bus
FSM_A20
H21
U23.C8
Address bus
FSM_A21
M13
U23.A8
Address bus
FSM_A22
P7
U23.G1
Address bus
FSM_A23
F10
U23.H8
Address bus
FSM_A24
R4
U23.B6
Address bus (die select)
FSM_A25
K4
U23.F2
Data bus
FSM_D0
A19
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