FLEX10KE Altera Corporation, FLEX10KE Datasheet - Page 4

• Manufacturer Part Number: FLEX10KE
• Description: Pci Development Board For Epf10k Series
• Manufacturer: Altera Corporation

FLEX PCI Development Board Data Sheet
4
System
clock
System
clock
System
clock
Crystal
oscillator
External
clock
Table 2. Available Device Clocks & Corresponding Resistor Settings
Source
No
Yes
Yes
Yes
Yes
PLL
FLEX device PCI clock.
FLEX device PCI clock.
SDRAM, expansion
connector, prototype
clock, FLEX device
clock2.
SDRAM, expansion
connector, prototype
clock, FLEX device
clock2.
SDRAM, expansion
connector, prototype
clock, FLEX device
clock2.
Table 2
1
FLEX 10KE Pin Assignments
Pin assignments to FLEX 10KE devices ensure that its I/Os are properly
connected to the defined signals on the board. Before compiling the
FLEX 10KE design for the PCI development board, pin assignments must
be made to all defined pins.
Signal Connections
Signals pass through the PCI development board via the PCI interface
connector, expansion connector, or external sources and connect to
various board components.
Destination
shows the available clocks and the corresponding resistor settings.
Resistors R45, R41, and R36 are installed on the board by default.
R49
R45,
R41
R45,
R36
R35
R39
Resistor
Settings
The system clock is connected directly to the on-
board FLEX device’s PCI clock input
The system clock is used as a reference voltage to
the PLL. An output of the PLL is connected to the
FLEX device’s PCI clock input
The system clock is used as a reference voltage to
the PLL, and outputs of the PLL are connected to
SDRAM, FLEX device clock2, expansion
connector, and prototype clock.
The crystal oscillator (not included) is used as a
reference voltage to the PLL, and outputs of the
PLL are connected to SDRAM, FLEX device
clock2, expansion connector, and prototype clock.
The external clock is used as a reference voltage to
the PLL, and outputs of the PLL are connected to
SDRAM, FLEX device clock2, expansion
connector, and prototype clock.
Table 3
defines the schematic references.
Description
Altera Corporation