參數(shù)資料
型號(hào)： 28233-11
廠商： CONEXANT SYSTEMS
元件分類(lèi)： 數(shù)字傳輸電路
英文描述： ATM Transmitter/Receiver with UTOPIA Interface
中文描述： TRANSCEIVER, PQFP160
封裝： PLASTIC, MQFP-160
文件頁(yè)數(shù)： 50/161頁(yè)
文件大?。?/td> 1832K
代理商： 28233-11
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Calculates and inserts path FEBE (or all 1s or all 0s). Inserts path RDI and qualifier (path yellow). If
disabled, inserts value of 0x00.
2.0 Functional Description
CN8223
2.3 Overhead Generation
ATM Transmitter/Receiver with UTOPIA Interface
2-16
Conexant
100046C
H4
This byte is no longer used by the CN8223. Its value is insignificant. H4 is the number of octets
between the H4 octet position and the next cell starting position in the payload and thus has a value
ranging from 0 to 52. Its value will change in each frame because the payload does not hold an
integral number of cells. This used to be the mechanism to locate cell boundaries but is no longer
used since the HEC alignment technique was developed. Thus, the value in this position does not
really matter. The CN8223 transmitter still generates this value but the receiver does not pay
attention to it.
B2
Calculates and inserts B2. Errors can be inserted using the TXFEAC_ERRPAT register. Allows single
error insertion or all-zero value (continuous error).
K1, K2
The K1 and K2 (FERF) values are internally generated through register 0x32. They can also be
inserted externally through port TXOVH[7:0].
D4
–
D12
Always inserted through port TXOVH[7:0].
Z1
Always inserted through port TXOVH[7:0].
M1
Calculates and inserts line FEBE, based on incoming
B2 errors. Can be set for FEBE = all 1s or all 0s.
E2
Always inserted through port TXOVH[7:0].
J1
Always inserted through port TXOVH[7:0].
B3
Calculates and inserts B3. Errors can be inserted using the TXFEAC_ERRPAT register. Allows single
error insertion or all-zero value (continuous error).
C2
Three options:
If disabled, value = 0x00
Can be internally generated (0x13)
Can be externally inserted through port TXOVH[7:0]
G1
F2
Always inserted through port TXOVH[7:0].
Z3, Z4
Always inserted through port TXOVH[7:0].
Z5
Always inserted through port TXOVH[7:0].
Table 2-12. STS-1, STS-3c, and STM-1 Overhead Values (2 of 2)
Overhead Byte
CN8223 Operation
相關(guān)PDF資料
PDF描述
28C010TRPDB-12 150 x 32 pixel format, LED Backlight available
28C010TRT1DE-15 1 Megabit (128K x 8-Bit) EEPROM
28C010TRT1DE-20 1 Megabit (128K x 8-Bit) EEPROM
28C010TRT1FB-15 1 Megabit (128K x 8-Bit) EEPROM
28C010TRT1FB-20 1 Megabit (128K x 8-Bit) EEPROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
282332-2 制造商:TE Connectivity 功能描述:
282-333 制造商:WAGO Innovative Connections 功能描述:END PLATE RAIL MOUNTED TERMINAL BLOCK 制造商:WAGO 功能描述:END PLATE, RAIL MOUNTED TERMINAL BLOCK 制造商:WAGO Innovative Connections 功能描述:END PLATE, RAIL MOUNTED TERMINAL BLOCK; Series:282; Accessory Type:End Plate; For Use With:Rail Mounted Terminal Blocks; Color:Orange; Mounting Type:DIN Rail ;RoHS Compliant: Yes
2823337 功能描述:工業(yè)繼電器 ST-REL4-KG120/21-21 RoHS:否 制造商:TE Connectivity / Kilovac 觸點(diǎn)形式:1 Form A (SPST-NO) 觸點(diǎn)電流額定值: 線圈電壓:9 VDC to 36 VDC 線圈電阻:38 Ohms 線圈電流: 切換電壓: 安裝風(fēng)格:Panel 觸點(diǎn)材料:Silver Palladium
282-334 制造商:WAGO Innovative Connections 功能描述:End Plate 2 mm Thick-Color Grey For Use With Rail Mounted Terminal Block 制造商:WAGO 功能描述:GREY END PLATE 制造商:WAGO Innovative Connections 功能描述:END PLATE, 2MM, GREY; Series:-; Accessory Type:End Plate; For Use With:Rail Mounted Terminal Blocks ;RoHS Compliant: Yes
282-334 制造商:WAGO Innovative Connections 功能描述:END PLATE 制造商:WAGO 功能描述:END PLATE
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