Altera Cyclone IV - Transceiver Reset Sequences

2–4 Chapter 2: Cyclone IV Reset Control and Power Down
Transceiver Reset Sequences
Cyclone IV Device Handbook, September 2014 Altera Corporation
Volume 2
Transceiver Reset Sequences
You can configure transceiver channels in Cyclone IV GX devices in various
configurations. In all functional modes except XAUI functional mode, transceiver
channels can be either bonded or non-bonded. In XAUI functional mode, transceiver
channels must be bonded. In PCI Express
®
(PCIe
®
) functional mode, transceiver
channels can be either bonded or non-bonded and need to follow a specific reset
sequence.
The two categories of reset sequences for Cyclone IV GX devices described in this
chapter are:
■ “All Supported Functional Modes Except the PCIe Functional Mode” on
page 2–6—describes the reset sequences in bonded and non-bonded
configurations.
■ “PCIe Functional Mode” on page 2–17—describes the reset sequence for the
initialization/compliance phase and the normal operation phase in PCIe
functional modes.
Serializer — — v — v
Transmitter Buffer — — — — v
Transmitter XAUI State
Machine
——v — v
Receiver Buffer — — — — v
Receiver CDR — v —— v
Receiver Deserializer — — — — v
Receiver Word Aligner v ——— v
Receiver Deskew FIFO v ——— v
Receiver Clock Rate
Compensation FIFO
v ——— v
Receiver 8B/10B
Decoder
v ——— v
Receiver Byte
Deserializer
v ——— v
Receiver Byte Ordering v ——— v
Receiver Phase
Compensation FIFO
v ——— v
Receiver XAUI State
Machine
v ——— v
BIST Verifiers v ——— v
Table 2–3. Blocks Affected by Reset and Power-Down Signals (Part 2 of 2)
Transceiver Block rx_digitalreset rx_analogreset tx_digitalreset pll_areset gxb_powerdown