Clock input pin list, Switches, Switches –14 – Altera Cyclone II FPGA Starter Development Board User Manual
Page 32
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2–14
Reference Manual
Altera Corporation
Cyclone II FPGA Starter Development Board
October 2006
Development Board Components
Figure 2–7. Clocking Circuit Schematic Diagram
Clock Input Pin List
lists the FPGA pins assigned to the display segments.
Switches
The development board provides the following user switches:
■
Power ON/OFF switch
■
RUN/PROG switch
■
4 push button switches
■
10 Toggle switches
Table 2–9. Clock Circuit FPGA Pin Connections
Signal Name
FPGA Pin
Description
CLOCK_27
PIN_D12
27 MHz clock input
CLOCK_50
PIN_L1
50 MHz clock input
CLOCK_24
PIN_B12
24 MHz clock input from USB Blaster
EXT_CLOCK
PIN_M21
External (SMA) clock input
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