- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄380224 > CYP15G0101DXA-BBI (CYPRESS SEMICONDUCTOR CORP) Single Channel HOTLink II Transceiver PDF資料下載
參數(shù)資料
| 型號： | CYP15G0101DXA-BBI |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Single Channel HOTLink II Transceiver |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PBGA100 |
| 封裝： | 11 X 11 MM, 1.40 MM HEIGHT, BGA-100 |
| 文件頁數(shù)： | 32/40頁 |
| 文件大小： | 527K |
| 代理商： | CYP15G0101DXA-BBI |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁當(dāng)前第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁
CYP15G0101DXA
PRELIMINARY
Document #: 38-02061 Rev. **
Page 32 of 40
X3.230 Codes and Notation Conventions
Information to be transmitted over a serial link is encoded eight
bits at a time into a 10-bit Transmission Character and then
sent serially, bit by bit. Information received over a serial link
is collected ten bits at a time, and those Transmission Charac-
ters that are used for data characters are decoded into the
correct eight-bit codes. The 10-bit Transmission Code sup-
ports all 256 8-bit combinations. Some of the remaining Trans-
mission Characters (Special Characters) are used for func-
tions other than data transmission.
The primary use of a Transmission Code is to improve the
transmission characteristics of a serial link. The encoding de-
fined by the Transmission Code ensures that sufficient transi-
tions are present in the serial bit stream to make clock recov-
ery possible at the Receiver. Such encoding also greatly
increases the likelihood of detecting any single or multiple bit
errors that may occur during transmission and reception of
information. In addition, some Special Characters of the
Transmission Code selected by Fibre Channel Standard con-
tain a distinct and easily recognizable bit pattern that assists
the receiver in achieving character alignment on the incoming
bit stream.
Notation Conventions
The documentation for the 8B/10B Transmission Code uses
letter notation for the bits in an 8-bit byte. Fibre Channel Stan-
dard notation uses a bit notation of A, B, C, D, E, F, G, H for
the 8-bit byte for the raw 8-bit data, and the letters a, b, c, d,
e, i, f, g, h, j for encoded 10-bit data. There is a correspon-
dence between bit A and bit a, B and b, C and c, D and d, E
and e, F and f, G and g, and H and h. Bits i and j are derived,
respectively, from (A,B,C,D,E) and (F,G,H).
The bit labeled A in the description of the 8B/10B Transmission
Code corresponds to bit 0 in the numbering scheme of the FC-
2 specification, B corresponds to bit 1, as shown below.
FC-2 bit designation
—
HOTLink D/Q designation
—
7
8B/10B bit designation
—
To clarify this correspondence, the following example shows
the conversion from an FC-2 Valid Data Byte to a Transmission
Character.
FC-2
45H
Bits: 7654 3210
7
6
6
5
5
4
4
E
3
3
D C B
2
2
1
1
0
0
A
H G F
0100 0101
Converted to 8B/10B notation, note that the order of bits has
been reversed):
Data Byte Name
D5.2
Bits: ABCDE FGH
10100 010
Translated to a transmission Character in the 8B/10B Trans-
mission Code:
Bits: abcdei fghj
101001 0101
Each valid Transmission Character of the 8B/10B Transmis-
sion Code has been given a name using the following conven-
tion: cxx.y, where c is used to show whether the Transmission
Character is a Data Character (c is set to D, and SC/D = LOW)
or a Special Character (c is set to K, and SC/D = HIGH). When c is
set to D, xx is the decimal value of the binary number composed of
the bits E, D, C, B, and A in that order, and the y is the decimal value
of the binary number composed of the bits H, G, and F in that order.
When c is set to K, xx and y are derived by comparing the encoded
bit patterns of the Special Character to those patterns derived from
encoded Valid Data bytes and selecting the names of the patterns
most similar to the encoded bit patterns of the Special Character.
Under the above conventions, the Transmission Character
used for the examples above, is referred to by the name D5.2.
The Special Character K29.7 is so named because the first six
bits (abcdei) of this character make up a bit pattern similar to
that resulting from the encoding of the unencoded 11101 pat-
tern (29), and because the second four bits (fghj) make up a
bit pattern similar to that resulting from the encoding of the
unencoded 111 pattern (7).
NOTE:
This definition of the 10-bit Transmission Code is
based on the following references, which describe the
same 10-bit transmission code.
A.X. Widmer and P.A. Franaszek.
“
A DC-Balanced, Parti-
tioned-Block, 8B/10B Transmission Code
”
IBM Journal of Re-
search and Development, 27, No. 5: 440-451 (September, 1983).
U.S. Patent 4,486,739. Peter A. Franaszek and Albert X. Wid-
mer.
“
Byte-Oriented DC Balanced (0.4) 8B/10B Partitioned
Block Transmission Code
”
(December 4, 1984).
Fibre Channel Physical and Signaling Interface (ANS X3.230-
1994 ANSI FC-PH Standard).
IBM Enterprise Systems Architecture/390 ESCON I/O Inter-
face (document number SA22-7202).
8B/10B Transmission Code
The following information describes how the tables are used
for both generating valid Transmission Characters (encoding)
and checking the validity of received Transmission Characters
(decoding). It also specifies the ordering rules to be followed
when transmitting the bits within a character and the charac-
ters within any higher-level constructs specified by a standard.
Transmission Order
Within the definition of the 8B/10B Transmission Code, the bit
positions of the Transmission Characters are labeled a, b, c,
d, e, i, f, g, h, j. Bit
“
a
”
is transmitted first followed by bits b, c,
d, e, i, f, g, h, and j in that order.
Note that bit i is transmitted between bit e and bit f, rather than
in alphabetical order.
Valid and Invalid Transmission Characters
The following tables define the valid Data Characters and valid
Special Characters (K characters), respectively. The tables
are used for both generating valid Transmission Characters
and checking the validity of received Transmission Charac-
ters. In the tables, each Valid-Data-byte or Special-Character-
code entry has two columns that represent two Transmission
Characters. The two columns correspond to the current value
of the running disparity. Running disparity is a binary parame-
ter with either a negative (
–
) or positive (+) value.
After powering on, the Transmitter may assume either a posi-
tive or negative value for its initial running disparity. Upon
transmission of any Transmission Character, the transmitter
will select the proper version of the Transmission Character
based on the current running disparity value, and the Trans-
mitter calculates a new value for its running disparity based on
the contents of the transmitted character. Special Character
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CYP15G0402DX-BGC | Quad HOTLinkII SERDES |
| CYP15G0402DX | Quad HOTLinkII SERDES |
| CYP15G0402DX-BGI | Quad HOTLinkII SERDES |
| CYP15G0402DXB | Quad HOTLink II SERDES(四HOTLink II并行轉(zhuǎn)換器) |
| CYV15G0402DXB | Quad HOTLink II SERDES(四HOTLink II并行轉(zhuǎn)換器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CYP15G0101DXB | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Single-channel HOTLink II⑩ Transceiver |
| CYP15G0101DXB_11 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Single-channel HOTLink II Transceiver Compliant to multiple standards |
| CYP15G0101DXB_12 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Single-channel HOTLink IIa?￠ Transceiver |
| CYP15G0101DXB-BBC | 功能描述:電信線路管理 IC Single Channel XCVR 1.5Gbps Bckplane COM RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| CYP15G0101DXB-BBI | 功能描述:電信線路管理 IC Single Channel XCVR 1.5Gbps Bckplane IND RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。