Altera Cyclone III LS FPGA Development Board - Manual (Page 43)

Chapter 2: Board Components 2–35
Memory
© October 2009 Altera Corporation Cyclone III LS FPGA Development Board Reference Manual
Table 2–36 lists the HSMC connector component reference and manufacturing
information.
Memory
This section describes the board's memory interface support and also their signal
names, types, and connectivity relative to the Cyclone III LS device. The board has the
following memory interfaces:
■ DDR2
■ SSRAM
■ Flash
■ EEPROM
f
For more information about the memory interfaces, refer to the following documents:
■ AN 438: Constraining and Analyzing Timing for External Memory Interfaces in Stratix
IV, Stratix III, and Cyclone III Devices
.
■ AN 445: Design Guidelines for Implementing DDR and DDR2 SDRAM Interfaces in
Cyclone III Devices
.
U27.7 Dedicated CMOS I/O bit 73 when
LCD_HSMB_SEL is set to a logic 1. LCD_HSMB_D73
2.5-V
W4
U27.12 Dedicated CMOS I/O bit 74 when
LCD_HSMB_SEL is set to a logic 1. LCD_HSMB_D74 W6
U27.9 Dedicated CMOS I/O bit 75 when
LCD_HSMB_SEL is set to a logic 1. LCD_HSMB_D75 W7
J1.155 LVDS or CMOS clock out 2 or CMOS bit 76 HSMB_CLKOUT_P2 T6
J1.156 LVDS or CMOS clock in 2 or CMOS bit 77 HSMB_CLKIN_P2 T2
J1.157 LVDS or CMOS clock out 2 or CMOS bit 77 HSMB_CLKOUT_N2 T5
J1.158 LVDS or CMOS clock in 2n or CMOS bit 79 HSMB_CLKIN_N2 T1
J1.160 HSMC port B presence detect LED HSMB_PRSNTn —
J18 To control the HSMB_D[65:75] via the FPGA,
the shunt should be removed from this jumper,
or the FPGA must drive a logic 1. LCD_HSMB_SEL
1.8-V
D20
Note to Table 2–35 :
(1) Board references J1.1 to J1.32 are not connected.
Table 2–35. HSMC Port B Pin Assignments, Schematic Signal Names, and Functions (Part 4 of 4) (1)
Board
Reference Description
Schematic Signal
Name I/O Standard
Cyclone III LS
Device
Pin Number
Table 2–36. HSMC Connector Component Reference and Manufacturing Information
Board Reference Description Manufacturer
Manufacturing
Part Number
Manufacturer
Website
J1 and J2 HSMC, custom version of QSH-DP
family high-speed socket. Samtec ASP-122953-01 www.samtec.com