EP1SGX10DF672C6 Datasheet, PDF (48/272 Pages) Altera Corporation – Section I. Stratix GX Device Family Data Sheet

Other Transceiver Features
Power-down functions are static, in other words., they are implemented
upon device configuration and programmed, through the Quartus II
software, to static values. Resets can be static as well as dynamic inputs
coming from the logic array or pins.
Table 2–11. Reset Signal Map to Stratix GX Blocks
Reset Signal
rxdigitalreset
vvvvv
vv
rxanalogreset
v
v
v
txdigitalreset v v
v
v
pll_areset
vvvvvvvvvvvvvvvvvv
pllenable
vvvvvvvvvvvvvvvvvv
Voltage Reference Capabilities
Stratix GX transceivers provide voltage reference and bias circuitry. To
set-up internal bias for controlling the transmitter output drivers’ voltage
swing—as well as to provide voltage/current biasing for other analog
circuitry—use the internal bandgap voltage reference at 0.7 V. To provide
bias for internal pull-up PMOS resistors for I/O termination at the serial
interface of receiver and transmitter channels (independent of power
supply drift, process changes, or temperature variation) an external
resistor, which is connected to the external low voltage power supply, is
2–38
Stratix GX Device Handbook, Volume 1
Altera Corporation
June 2006