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参数资料
| 型号： | DS21Q58LN |
| 英文描述： | E1 Quad Transceiver |
| 中文描述： | 素E1通道收发器 |
| 文件页数： | 19/74页 |
| 文件大小： | 647K |
| 代理商： | DS21Q58LN |
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DS21Q58 E1 Quad Transceiver
19 of 74
Table 8-1. Sync/Resync Criteria
FRAME OR
MULTIFRAME
LEVEL
SYNC CRITERIA
RESYNC CRITERIA
ITU SPEC.
FAS
FAS present in frame N and N + 2,
and FAS not present in frame N + 1
Three consecutive incorrect FAS received;
alternate (RCR1.2 = 1): if the above criteria
is met or three consecutive incorrect bit 2 of
non-FAS received
915 or more CRC4 codewords out of 1000
received in error
G.706
4.1.1
4.1.2
CRC4
Two valid MF alignment words found
within 8ms
Valid MF alignment word found and
previous time slot 16 contains code
other than all zeros
G.706
4.2 and 4.3.2
CAS
Two consecutive MF alignment words
received in error
G.732 5.2
Register Name:
Register Description:
Register Address:
Bit #
Name
NAME
TCR
Transmit Control Register
11 Hex
7
6
5
4
3
2
1
0
IFSS
TFPT
AEBE
TUA1
TSiS
TSA1
TSM
TSIO
BIT
FUNCTION
IFSS
7
Internal Frame-Sync Select
0 = TSYNC normal
1 = if TSYNC is in the INPUT mode (TSIO = 0), then TSYNC is internally
replaced by the recovered receive frame sync; the TSYNC pin is ignored
1 = if TSYNC is in the OUTPUT mode (TSIO = 1), then TSYNC outputs the
recovered multiframe frame sync
Transmit Time Slot 0 Pass Through
0 = FAS bits/Sa bits/remote alarm sourced internally from the TAF and TNAF
registers
1 = FAS bits/Sa bits/remote alarm sourced from TSER
Automatic E-Bit Enable
0 = E-bits not automatically set in the transmit direction
1 = E-bits automatically set in the transmit direction
Transmit Unframed All Ones
0 = transmit data normally
1 = transmit an unframed all-ones code
Transmit International Bit Select
0 = sample Si bits at TSER pin
1 = source Si bits from TAF and TNAF registers (In this mode, TCR.6 must be
set to 0)
Transmit Signaling All Ones
0 = normal operation
1 = force time slot 16 in every frame to all ones
TSYNC Mode Select
0 = frame mode (see the timing diagrams in Section
24.2
)
1 = CAS and CRC4 multiframe mode (see the timing diagrams in Section
24.2
)
TSYNC I/O Select
0 = TSYNC is an input
1 = TSYNC is an output
TFPT
6
AEBE
5
TUA1
4
TSiS
3
TSA1
2
TSM
1
TSIO
0
Note:
See
Figure 24-9
for more details about how the transmit control register affects DS21Q58 operation.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS21Q58LN+ | 功能描述:网络控制器与处理器 IC Quad E1 Transceiver RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q59 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:RELIABILITY REPORT FOR DS21Q59, REV A2 |
| DS21Q59DK | 功能描述:网络开发工具 DS21Q59 Dev Kit RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V |
| DS21Q59L | 功能描述:网络控制器与处理器 IC Quad E1 Transceiver RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q59L+ | 功能描述:网络控制器与处理器 IC Quad E1 Transceiver RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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