參數(shù)資料
型號(hào)： DS21Q59LN+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 21/76頁(yè)
文件大?。?/td> 0K
描述： IC TXRX E1 QUAD 100-LQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 90
類型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 4/4
規(guī)程： E1
電源電壓： 4.75 V ~ 5.25 V
安裝類型： 表面貼裝
封裝/外殼： 100-LQFP
供應(yīng)商設(shè)備封裝： 100-LQFP（14x14）
包裝： 托盤
DS21Q59 Quad E1 Transceiver
28 of 76
9.1 Interrupt Handling
The host can quickly determine which status registers in the four ports are causing an interrupt by reading one of
the unused addresses such as 0Ch, 0Dh, or 0Eh in any port.
Bit #
7
6
5
4
3
2
1
0
Name
SR2P4
SR1P4
SR2P3
SR1P3
SR2P2
SR1P2
SR2P1
SR1P1
NAME
BIT
FUNCTION
SR2P4
7
Status Register 2, Port 4. A 1 in this bit position indicates that status register 2
in port 4 is asserting an interrupt.
SR1P4
6
Status Register 1, Port 4. A 1 in this bit position indicates that status register 1
in port 4 is asserting an interrupt.
SR2P3
5
Status Register 2, Port 3. A 1 in this bit position indicates that status register 2
in port 3 is asserting an interrupt.
SR1P3
4
Status Register 1, Port 3. A 1 in this bit position indicates that status register 1
in port 3 is asserting an interrupt.
SR2P2
3
Status Register 2, Port 2. A 1 in this bit position indicates that status register 2
in port 2 is asserting an interrupt.
SR1P2
2
Status Register 1, Port 2. A 1 in this bit position indicates that status register 1
in port 2 is asserting an interrupt.
SR2P1
1
Status Register 2, Port 1. A 1 in this bit position indicates that status register 2
in port 1 is asserting an interrupt.
SR1P1
0
Status Register 1, Port 1. A 1 in this bit position indicates that status register 1
in port 1 is asserting an interrupt.
Register Name:
RIR
Register Description:
Receive Information Register
Register Address:
08 Hex
Bit #
7
6
5
4
3
2
1
0
Name
RGM1
RGM0
JALT
RESF
RESE
CRCRC
FASRC
CASRC
NAME
BIT
FUNCTION
RGM1
7
Receive Gain Monitor Bit 1. See table below for level indication.
RGM0
6
Receive Gain Monitor Bit 0. See table below for level indication.
JALT
5
Jitter Attenuator Limit Trip. Set when the jitter attenuator FIFO reaches to
within 4 bits of its limit; useful for debugging jitter attenuation operation.
RESF
4
Receive Elastic Store Full. Set when the receive elastic store buffer fills and a
frame is deleted.
RESE
3
Receive Elastic Store Empty. Set when the receive elastic store buffer
empties and a frame is repeated.
CRCRC
2
CRC Resync Criteria Met. Set when 915/1000 codewords are received in
error.
FASRC
1
FAS Resync Criteria Met. Set when three consecutive FAS words are
received in error.
CASRC
0
CAS Resync Criteria Met. Set when two consecutive CAS MF alignment
words are received in error.
Level Indication
RGM1
RGM0
LEVEL (dB)
0
0 to 10
0
1
10 to 20
1
0
20 to 30
1
>30
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DS21Q59LN+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 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
DS21S07A 制造商:Maxim Integrated Products 功能描述:
DS21S07AE 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube
DS21S07AE/T 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:SCSI Terminator
DS21S07AE/T&R 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:IC TERMINATOR SCSI 20-TSSOP
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