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參數(shù)資料
| 型號(hào)： | DS21Q50N |
| 英文描述： | Telecommunication IC |
| 中文描述： | 通信集成電路 |
| 文件頁(yè)數(shù)： | 37/99頁(yè) |
| 文件大?。?/td> | 325K |
| 代理商： | DS21Q50N |
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DS21Q50
Page 37 of 99
Register Name:
Register Description:
Register Address:
Bit #
SYM
CSC5
SYMBOL
CSC5
SSR
SYNCHRONIZER STATUS REGISTER
09 Hex
7
6
5
4
3
2
1
0
CSC4
CSC3
CSC2
CSC0
FASSA CASSA
CRC4SA
BIT NAME AND DESCRIPTION
7
CRC4 Sync Counter Bit 5.
MSB of the 6–bit counter.
6
CRC4 Sync Counter Bit 4.
5
CRC4 Sync Counter Bit 3.
4
CRC4 Sync Counter Bit 2.
3
CRC4 Sync Counter Bit 0.
LSB of the 6–bit counter. Counter Bit 1 is
not accessible.
2
FAS Sync Active.
Set while the synchronizer is searching for alignment
at the FAS level.
1
CAS MF Sync Active.
Set while the synchronizer is searching for the
CAS MF alignment word.
0
CRC4 MF Sync Active.
Set while the synchronizer is searching for the
CRC4 MF alignment word.
CSC4
CSC3
CSC2
CSC0
FASSA
CASSA
CRC4SA
8.1 CRC4 SYNC COUNTER
The CRC4 Sync Counter increments each time the 8 ms CRC4 multiframe search times out. The counter is
cleared when the framer has successfully obtained synchronization at the CRC4 level. The counter can also be
cleared by disabling the CRC4 mode (CCR1.0=0). This counter is useful for determining the amount of time the
framer has been searching for synchronization at the CRC4 level. ITU G.706 suggests that if synchronization at
the CRC4 level cannot be obtained within 400 ms, then the search should be abandoned and proper action
taken. The CRC4 Sync Counter will rollover.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| DS21Q55 | 功能描述:IC TXRX QUAD T1/E1/J1 SCT 256BGA RoHS:否 類別:集成電路 (IC) >> 接口 - 電信 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 06/Feb/2012 標(biāo)準(zhǔn)包裝:750 系列:* |
| DS21Q552 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 5V Quad T1 Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q552+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 5V Quad T1 Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q552B | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS21Q552BN | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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