ep1agx50d Altera Corporation, ep1agx50d Datasheet - Page 38

• Manufacturer Part Number: ep1agx50d
• Description: Arria Gx Device Data Sheet
• Manufacturer: Altera Corporation

Transceivers
2–30
Arria GX Device Handbook, Volume 1
rx_digitalreset
rx_analogreset
tx_digitalreset
gxb_powerdown
gxb_enable
Table 2–6. Reset Signal Map to Arria GX Blocks
Reset Signal
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Table 2–6
transceiver circuitry affected by each signal.
Calibration Block
Arria GX devices use the calibration block to calibrate on-chip
termination for the PLLs and their associated output buffers and the
terminating resistors on the transceivers. The calibration block counters
the effects of process, voltage, and temperature (PVT). The calibration
block references a derived voltage across an external reference resistor to
calibrate the on-chip termination resistors on Arria GX devices. The
calibration block can be powered down. However, powering down the
calibration block during operations may yield transmit and receive data
errors.
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shows the reset signals available in Arria GX devices and the
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Altera Corporation
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May 2008
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