Altera Stratix IV E FPGA Development Board - Manual (Page 29)

Chapter 2: Board Components 2–21
Configuration, Status, and Setup Elements
May 2011 Altera Corporation Stratix IV E FPGA Development Board Reference Manual
On-Board Memory Headers
The on-board memory headers are provided to set the output impedance and I/O
voltage level for the QDR II+ and RLDRAM II memories.
Table 2–16 shows the header
settings and its descriptions.
Table 2–19 lists the on-board memory header component references and
manufacturing information.
Reset Configuration Push-button Switch
The reset configuration push-button switch (S1), is an input to the MAX II CPLD
EPM2210 System Controller. The push-button switch forces a reconfiguration of the
FPGA from flash memory. The location in the flash memory is based on the rotary
switch setting when the configuration push-button is released. Valid settings include
0 and 1 on the two pages in flash memory reserved for FPGA designs.
Table 2–20 lists the reset configuration push-button switches component reference
and manufacturing information.
Table 2–18. On-Board Memory Header Settings
Board
Reference
Schematic Signal Name Description Default
J7 QDRII_ZQ
Shunt on pins 1-2: Min output impedance
Shunt on pins 3-4: 50- Ω output impedance
Shunt on pins 5-6: 60- Ω output impedance
Shunt on pins 3-4
J11 —
Shunt ON: QDR II VDDQ at 1.8 V
Shunt OFF: QDR II VDDQ at 1.5 V
Shunt OFF
J18 —
Shunt ON: RLDRAMII VDDQ at 1.8 V
Shunt OFF: RLDRAMII VDDQ at 1.5 V
Shunt OFF
J28 RLDC_ZQ
Shunt on pins 1-2: Max output impedance
Shunt on pins 3-4: 60- Ω output impedance
Shunt on pins 5-6: 50- Ω output impedance
Shunt OFF
J29 DDR3_DIMM_TEST[5:1] User-defined test pins for the DDR3 (optional). Shunt OFF
Table 2–19. On-Board Memory Header Component References and Manufacturing Information
Board
Reference
Device Description Manufacturer
Manufacturer
Part Number
Manufacturer Website
J7, J28 3×2 vertical header Samtec TSW-103-07-L-D www.samtec.com
J11, J18 2×1 2 mm pitch vertical header Samtec TMM-102-01-S-S www.samtec.com
J29 2×5 100 mil pitch vertical header Samtec TSM-105-01-T-DV-TR www.samtec.com
Table 2–20. Reset Configuration Push-Button Switches Component Reference and Manufacturing Information
Board
Reference
Description Manufacturer
Manufacturer
Part Number
Manufacturer Website
S1 Push-Button switch Panasonic EVQPAC07K
www.panasonic.com/industrial/components/
components.html