Chapter 2: Board Components
2–45
Memory
August 2015
Altera Corporation
Cyclone IV GX FPGA Development Board
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
G6
U44.87
Byte lane write enable
SSRAM_BWn
F8
U44.89
Clock
SSRAM_CLK
F11
U44.98
Chip enable 1
SSRAM_E1n
C6
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