EP2AGX45DF29I5 Altera, EP2AGX45DF29I5 Datasheet - Page 588

• Manufacturer Part Number: EP2AGX45DF29I5
• Description: IC ARRIA II GX FPGA 45K 780FBGA
• Manufacturer: Altera
• Series: Arria II GXr

Specifications of EP2AGX45DF29I5

• Number Of Logic Elements/cells: 42959
• Number Of Labs/clbs: 1805
• Total Ram Bits: 3435
• Number Of I /o: 364
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 780-FBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

4–14
Figure 4–9. Sample Reset Sequence of Receiver and Transmitter Channel—Receiver CDR in Manual Lock Mode
Arria II Device Handbook Volume 2: Transceivers
Reset Signals
CDR Control Signals
Output Status Signals
pll_powerdown
rx_analogreset
tx_digitalreset
rx_digitalreset
rx_locktorefclk
rx_pll_locked
rx_locktodata
pll_locked
Receiver and Transmitter Channel—Receiver CDR in Manual Lock Mode
This configuration contains both a transmitter and receiver channel. If you create a
Receiver and Transmitter instance in the ALTGX MegaWizard Plug-In Manager with
the receiver CDR in manual lock mode, use the reset sequence shown in
As shown in
manual lock mode:
1. After power up, assert pll_powerdown for a minimum period of 1 s (the time
2. Keep the tx_digitalreset, rx_analogreset, rx_digitalreset, and
3. After the transmitter PLL locks, as indicated by the pll_locked signal going high
busy
between markers 1 and 2).
rx_locktorefclk signals asserted and the rx_locktodata signal de-asserted
during this time period. After you de-assert the pll_powerdown signal, the
transmitter PLL starts locking to the transmitter input reference clock.
(marker 3), de-assert tx_digitalreset. For receiver operation, wait for the busy
signal to be de-asserted. At this point, rx_analogreset is de-asserted. After
rx_analogreset is de-asserted, the receiver CDR starts locking to the receiver
input reference clock because rx_locktorefclk is asserted.
1
1 μs
Figure
2
4–9, perform the following reset sequence steps for the receiver in
3
Two parallel clock cycles
4
5
6
7
Chapter 4: Reset Control and Power Down in Arria II Devices
15 μs
8
8
4 μs
9
December 2010 Altera Corporation
Transceiver Reset Sequences
Figure
4–9.