TQ9303 Просмотр технического описания (PDF) - TriQuint Semiconductor
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TQ9303 Datasheet PDF : 25 Pages
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TQ9303
Fibre Channel provides a transport vehicle for Intelligent
Peripheral Interface (IPI) and Small Computer System
Interface (SCSI) upper layer command sets, High-
Performance Parallel Interface (HIPPI) data link layer,
and other user-defined command sets. Fibre Channel
replaces the SCSI, IPI, and HIPPI physical interfaces
with a protocol-efficient alternative that provides
performance improvements over distance and speed.
Fibre Channel is optimized for predictable transfers of
large blocks of data such as those used in file transfers
between processors (such as super computers, main-
frames, and super minis), storage systems (such as disk
and tape drives), communications devices, and output-
only devices (such as laser printers and raster scan
graphics terminals). The Fibre Channel protocol is
implemented in hardware, making it simple, efficient,
and robust.
The lower level physical interface is decoupled from the
higher level protocol, allowing Fibre Channel to be config-
ured with various topologies. Point-to-point, multi-drop
bus, ring, and cross-point switch topologies are permit-
ted in Fibre Channel, optimizing it for specific applications.
Fibre Channel supports distances up to 10␣ Km at baud
rates of 132.8125␣ Mbaud to 1.0625␣ Gbaud. Coax and
STP (Shielded Twisted Pair) are used at lower data
rates and shorter distances, while fiber-optic cables are
used for higher data rates and longer distances.
Figure 2. TQ9303 ENDEC Block Diagram
32
CTXD0..31
CTXC0,
8
CTXC1,
CTXP0..3,
CTXRAWA,
CTXRAWB
3
CTXRAW,
CTXPENN,
CTXPMODE
CTXPERR
CTXCERR
CTXCLK
CTXWREF
RESETN
RXERROR
CRXD0..31
32
8
CRXP0..3,
CRXS0,
CRXS2..4
RAW Rx,
2
RXPMODE
CRXS1
CRXS5
WRDSYNC
RXCKPH0,1
CRXCLK
40 40
17
20 17
Word-to-
Half-Word
Shifter
Mux 17
8b/10b
Encoder
20
Mux
Half-Word-
to-Byte
10
Shifter
Parity
Checker/
Generator
Ordered Set
Encoder
32-BIT CRC
Generator/
Checker
ENCODER SECTION
Word Half Word Byte
Clk
Clk Clk
Clock Generator
36
40
Half-Word-
to-Word
20
Mux
4
Shifter
DECODER SECTION
1
20
16
16
1
3
10b/8b
Decoder
20 Byte-to-
Half-Word
Shifter
Parity
Generator
32-Bit CRC
Checker
Ordered Set
Decoder
Line State
Decoder
Word Sync
Detector
Word Half Word Byte
Clk
Clk Clk
2
Clock Generator
10
BTXD0..9
BTXCKIN
BTXCKOUT
10
BRXD0..9
BRXCLK
BRXSYNC
2
For additional information and latest specifications, see our website: www.triquint.com
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