Altera Stratix II GX PCI Express Development Board Manual de usuario descargar pdf (Pagina 64)

2–54 Reference Manual Altera Corporation

Stratix II GX PCI Express Development Board August 2006

Temperature Sensor

Temperature

Sensor

The board has a two-wire SMBus interface to a MAX1619 temperature

sensing device. This is a low-bandwidth A/D converter that measures

small voltage changes across a 2N3904-equivalent diode on the FPGA’s

die. The device can be programmed to automatically turn on a cooling fan

at a temperature threshold. A regular I/O pin is used to override the fan

control regardless of the MAX1619 device setting.

Heat Sink and

Fan

One of several available fans that fits the 55 mm-spaced holes is the

Dynatron SCP1 heat-sink with an integrated fan, which is used for FPGA

heat dissipation on each Stratix II GX device. The fan uses 190 mA at 12 V

and can dissipate 25 W of heat with no additional air flow in a lab-bench

type environment. The 12 V is delivered through a two-pin, 100-mil

header (power and GND).

flash_d[13] C27

flash_d[14] K24

flash_d[15] A15

flash_d[2] B19

flash_d[3] C31

flash_d[4] A26

flash_d[5] G29

flash_d[6] F23

flash_d[7] H24

flash_d[8] A24

flash_d[9] A27

flash_oen A25

flash_rdybsyn N16

flash_resetn A34

flash_wen L27

Table 2–34. Flash Memory Pin-Out

Schematic Signal Name Stratix II GX Pin Number

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 70

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Altera Stratix II GX PCI Express Development Board Manual de usuario Pagina 64