HC4GX15 Datasheet, PDF (300/668 Pages) Altera Corporation – HardCopy IV Device Handbook

1–36
Chapter 1: HardCopy IV GX Transceiver Architecture
Transmitter Channel Datapath
Table 1–4 shows the core fabric-transceiver interface widths (channel width) and
transceiver PMA-PCS widths (serialization factor) allowed in single-width and
double-width modes.
Table 1–4. Core Fabric-Transceiver Interface Width and Transceiver PMA-PCS Widths
Name
PMA-PCS interface widths
Core fabric-transceiver interface width
Supported functional modes
Data rate range in Basic functional mode
Single-Width
Double-Width
8/10 bit
16/20 bit
8/10 bit
16/20 bit
16/20 bit
32/40 bit
■ PCI Express (PIPE) Gen1 and Gen2 ■ (OIF) CEI PHY Interface
■ XAUI
■ SONET/SDH OC96
■ GIGE
■ Serial RapidIO
■ Basic double-width
■ SONET/SDH OC12 and OC48
■ SDI
■ Basic single width
0.6 Gbps to 3.75 Gbps
1 Gbps to 6.5 Gbps
Transmitter Channel Datapath
The transmitter channel datapath, shown in Figure 1–21, consists of the following
blocks:
■ TX phase compensation FIFO
■ Byte serializer
■ 8B/10B encoder
■ Transmitter output buffer
The HardCopy IV GX transceiver provides the enable low latency PCS mode option
in the ALTGX MegaWizard Plug-In Manager. If you select this option, the 8B/10B
encoder in the datapath is disabled.
HardCopy IV Device Handbook Volume 3
© June 2009 Altera Corporation