DS26524

四路T1 / E1 / J1收发器

www.maxim-ic.com

概述

该DS26524是一个单芯片4端口成帧器和线路

对于T1 ，E1和J1接口单元（ LIU）的组合

应用程序。每个通道都是独立

配置，并支持长途和短途

线。

特点

四个完整的T1 ，E1或J1远程/的短期

长途收发器（LIU加成帧器）

独立的T1 ，E1或J1选择的每一个

收发器

内部软件选择发送和

接收端的用于100Ω T1双绞线

对， 110Ω J1双绞线， 120Ω E1双绞线

对， 75Ω同轴电缆

晶振的抖动衰减器可以选择

用于发送或接收通道;抖动衰减器

符合ETS CTR 12/13 ， ITU -T G.736 ， G.742 ，

G.823和AT&T酒吧62411

外部主时钟可以是多个的

为2.048MHz或1.544MHz为T1 / J1或E1

操作;该时钟由内部适用于

在主机模式的T1或E1

接收信号电平指示从-2.5dB到

-36dB在T1模式和-2.5dB至-44dB的E1

模式近似2.5分贝增量

发送开路和短路检测

刘在LOS按照G.775 ， ETS 300

233 ，和T1.231

应用

路由器

信道服务单元（个CSU ）

数据服务单元（DSU ）

多路复用器

开关

海峡银行

T1 / E1测试设备

典型工作电路

DS26524

T1/E1/J1

网

T1/J1/E1

收发器

x4

背板

发射同步

灵活的信号提取与插入

无论使用的系统接口或

微处理器端口

报警检测与插入

T1成帧格式的D4 ， SLC -96与ESF

TDM

订购信息

部分

DS26524GN

DS26524GN+

温度范围

-40 ° C至+ 85°C

-40 ° C至+ 85°C

PIN- PACKAGE

256 TE- CSBGA

256 TE- CSBGA

J1支持

E1 G.704和CRC- 4复

T1到E1的转换

产品特点继续第

2.

+表示无铅/符合RoHS标准的设备。

注意：

该器件的一些修订可能偏离称为勘误表公布的规格。任何器件的多个版本

可能同时获得通过不同的销售渠道。欲了解器件勘误表的信息，请点击这里：

www.maxim-ic.com/errata 。

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REV ： 102106

DS26524四路T1 / E1 / J1收发器

目录

1.

1.1

详细DESCRIPTION.................................................................................................9

M

AJOR

O

操作摄像机

M

副执行秘书办公室

.............................................................................................................9

2.

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

功能亮点................................................ .................................................. 10

G

ENERAL

......................................................................................................................................10

L

INE

I

覆盖整个院落

............................................................................................................................10

C

LOCK

S

YNTHESIZER

....................................................................................................................10

J

伊特尔

A

TTENUATOR

.....................................................................................................................10

F

RAMER

/F

ORMATTER

....................................................................................................................10

S

变体系

I

覆盖整个院落

......................................................................................................................11

HDLC

ONTROLLERS

...................................................................................................................12

T

EST和

D

IAGNOSTICS

................................................................................................................12

M

ICROCONTROLLER

P

ARALLEL

P

ORT

.............................................................................................12

3.

4.

5.

6.

7.

7.1

应用...............................................................................................................13

规范标准................................................ ................................... 14

缩写词和术语............................................... ........................................ 16

BLOCK DIAGRAMS.........................................................................................................17

引脚说明........................................................................................................19

P

IN

F

UNCTIONAL

D

ESCRIPTION

......................................................................................................19

8.

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8.8

功能说明................................................ ......................................... 26

M

ICROPROCESSOR

I

覆盖整个院落

......................................................................................................26

并口Mode................................................................................................................................ 26

背板时钟发生器............................................................................................................... 26

8.1.1

8.2.1

C

LOCK

S

TRUCTURE

.......................................................................................................................26

R

ESETS和

P

OWER

-D

OWN

M

副执行秘书办公室

..............................................................................................28

I

NITIALIZATION和

C

ONFIGURATION

..............................................................................................29

比如设备初始化序列.............................................. ................................................ 29

8.4.1

G

叶形

R

物资跟不上

....................................................................................................................29

P

ER

-P

ORT

R

物资跟不上

................................................................................................................29

D

EVICE

I

NTERRUPTS

.....................................................................................................................29

S

变体系

B

无源底板

I

覆盖整个院落

...................................................................................................31

弹性商店....................................................................................................................................... 31

IBO Multiplexer..................................................................................................................................... 34

H.100 （ CT总线）兼容.............................................................................................................. 40

接收和发送通道阻塞寄存器............................................ ................................. 41

分数传输支持（间隙时钟模式） .......................................... .................................. 41

接收分数支持（间隙时钟模式） .......................................... ................................... 41

T1 Framing........................................................................................................................................... 42

E1 Framing........................................................................................................................................... 45

T1发射同步.................................................................................................................... 47

信号.............................................................................................................................................. 48

T1数据Link......................................................................................................................................... 52

E1数据Link......................................................................................................................................... 54

维护和报警..................................................................................................................... 55

E1自动生成报警.......................................................................................................... 58

错误计数寄存器.......................................................................................................................... 59

DS0监控Function...................................................................................................................... 61

2 273

8.8.1

8.8.2

8.8.3

8.8.4

8.8.5

8.8.6

8.9

F

RAMERS

......................................................................................................................................42

8.9.1

8.9.2

8.9.3

8.9.4

8.9.5

8.9.6

8.9.7

8.9.8

8.9.9

8.9.10

DS26524四路T1 / E1 / J1收发器

8.9.11

8.9.12

8.9.13

8.9.14

8.9.15

8.9.16

8.9.17

传输每信道空闲代码插入........................................... ................................................ 62

收到每通道空闲码Insertion............................................................................................ 62

每通道环回........................................................................................................................ 62

E1 G.706中级CRC- 4更新（仅E1模式） .................................... ............................... 62

T1可编程带内环路代码生成.......................................... ..................................... 63

T1可编程带内环路代码检测.......................................... ...................................... 64

成帧器有效载荷环回................................................................................................................. 65

8.10

8.10.1

8.10.2

HDLC

ONTROLLERS

................................................................................................................66

接收HDLC Controller..................................................................................................................... 66

发送HDLC Controller.................................................................................................................... 69

8.11

8.11.1

8.11.2

8.11.3

8.11.4

8.11.5

L

INE

I

覆盖整个院落

U

尼特

（刘

S

)....................................................................................................71

刘Operation....................................................................................................................................... 74

发射机........................................................................................................................................... 75

接收器............................................................................................................................................... 78

抖动Attenuator.................................................................................................................................... 81

刘环回..................................................................................................................................... 82

8.12

8.12.1

8.12.2

B

IT

-E

RROR

-R

吃

T

美东时间

（ BERT ）F

油膏

................................................................................84

BERT重复模式设置............................................................................................................... 85

BERT错误Counter............................................................................................................................. 85

9.

9.1

设备寄存器.......................................................................................................86

R

EGISTER

L

ISTINGS

......................................................................................................................86

全球注册List.............................................................................................................................. 88

成帧器注册List............................................................................................................................. 89

刘和BERT注册List................................................................................................................. 96

全球寄存器位地图....................................................................................................................... 97

成帧器寄存器位地图...................................................................................................................... 98

刘寄存器位地图.......................................................................................................................... 106

BERT寄存器位地图...................................................................................................................... 106

9.1.1

9.1.2

9.1.3

9.2

R

EGISTER

B

IT

M

APS

......................................................................................................................97

9.2.1

9.2.2

9.2.3

9.2.4

9.3

9.4

9.5

9.6

G

叶形

R

EGISTER

D

EFINITIONS

..................................................................................................107

F

RAMER

R

EGISTER

D

EFINITIONS

.................................................................................................122

收到注册Definitions.............................................................................................................. 122

发送寄存器Definitions............................................................................................................. 181

9.4.1

9.4.2

刘

EGISTER

D

EFINITIONS

.........................................................................................................216

BERT

EGISTER

D

EFINITIONS

.....................................................................................................225

10.

功能时序...................................................................................................233

T1

ECEIVER

F

UNCTIONAL

T

即时通信

D

IAGRAMS

..........................................................................233

T1 T

变送器

F

UNCTIONAL

T

即时通信

D

IAGRAMS

....................................................................238

E1

ECEIVER

F

UNCTIONAL

T

即时通信

D

IAGRAMS

..........................................................................243

E1牛逼

变送器

F

UNCTIONAL

T

即时通信

D

IAGRAMS

....................................................................245

T

有源冰箱

C

极特

....................................................................................................249

L

INE

I

覆盖整个院落

C

极特

..........................................................................................249

M

ICROPROCESSOR

B

US

AC - C

极特

........................................................................250

我JTAG

覆盖整个院落

T

即时通信

.........................................................................................................259

S

变体系

C

LOCK

AC - C

极特

....................................................................................260

TAP

ONTROLLER

S

TATE

M

ACHINE

.........................................................................................262

Test-Logic-Reset................................................................................................................................ 262

运行测试空闲..................................................................................................................................... 262

选择DR扫描................................................................................................................................. 262

3的273

10.1

10.2

10.3

10.4

11.

操作PARAMETERS.........................................................................................248

11.1

11.2

12.

AC时序特性............................................... ................................... 250

12.1

12.2

12.3

13.

JTAG边界扫描和测试访问端口........................................... ..... 261

13.1.1

13.1.2

13.1.3

13.1

DS26524四路T1 / E1 / J1收发器

13.1.4

13.1.5

13.1.6

13.1.7

13.1.8

13.1.9

13.1.10

13.1.11

13.1.12

13.1.13

13.1.14

13.1.15

13.1.16

捕捉-DR ........................................................................................................................................ 262

Shift-DR.............................................................................................................................................. 262

Exit1-DR............................................................................................................................................. 262

Pause-DR........................................................................................................................................... 262

Exit2-DR............................................................................................................................................. 262

更新DR ......................................................................................................................................... 262

选择红外扫描............................................................................................................................... 262

捕获红外...................................................................................................................................... 263

Shift-IR............................................................................................................................................ 263

Exit1-IR........................................................................................................................................... 263

Pause-IR......................................................................................................................................... 263

Exit2-IR........................................................................................................................................... 263

更新IR ....................................................................................................................................... 263

示例： PRELOAD .......................................................................................................................... 265

BYPASS ............................................................................................................................................. 265

EXTEST ............................................................................................................................................. 265

CLAMP............................................................................................................................................... 265

HIGHZ ................................................................................................................................................ 265

IDCODE ............................................................................................................................................. 265

13.2

13.2.1

13.2.2

13.2.3

13.2.4

13.2.5

13.2.6

I

NSTRUCTION

R

EGISTER

...........................................................................................................265

13.3

13.4

13.4.1

13.4.2

13.4.3

JTAG编号C

副执行秘书办公室

......................................................................................................................266

T

美东时间

R

EGISTERS

.....................................................................................................................266

边界扫描寄存器.................................................................................................................... 266

旁路寄存器................................................................................................................................. 266

鉴定Register......................................................................................................................... 266

14.

15.

16.

PIN CONFIGURATION...................................................................................................271

封装信息................................................ ............................................ 272

256-B

所有

TE - CSBGA （ 56 G6028-001 ） ........................................ ........................................... 272

15.1

文档版本历史............................................... ................................. 273

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DS26524四路T1 / E1 / J1收发器

图列表

图6-1 。框图......................................................................................................................................... 17

图6-2 。详细座Diagram........................................................................................................................... 18

图8-1 。背板时钟Generation................................................................................................................... 27

图8-2 。设备的中断信息流程图............................................. ................................................ 30

图8-3 。 IBO多路复用器的等效电路， 4.096MHz ........................................... ........................................... 35

图8-4 。 IBO多路复用器的等效电路， 8.192MHz的........................................... ........................................... 36

图8-5 。 IBO多路复用器的等效电路， 16.384MHz的........................................... ......................................... 37

图8-6 。 RSYNC输入的H.100 （ CT总线） Mode................................................................................................... 40

图8-7 。 TSSYNCIO （输入模式）输入的H.100 （ CT总线）模式................................... .................................... 41

图8-8 。 CRC- 4重新计算的方法.................................................................................................................... 62

图8-9 。接收HDLC Example.......................................................................................................................... 68

图8-10 。 HDLC发送留言Example....................................................................................................... 70

图8-11 。网络连接的软件选择终止，纵联保护............................. 72

图8-12 。 T1 / J1发射脉冲模板.......................................................................................................... 76

图8-13 。 E1发送脉冲模板............................................................................................................... 77

图8-14 。典型监测中的应用................................................................................................................... 79

图8-15 。抖动衰减................................................................................................................................... 81

图8-16 。类似物Loopback................................................................................................................................... 82

图8-17 。本地回环..................................................................................................................................... 82

图8-18 。远程回环................................................................................................................................. 83

图8-19 。双返回...................................................................................................................................... 83

图9-1 。寄存器映射为DS26524.................................................................................................. 87

图10-1 。 T1接收端定时D4 ................................................................................................................ 233

图10-2 。 T1接收端ESF Timing.............................................................................................................. 233

图10-3 。 T1接收端边界定时（弹性商店禁用） ....................................... ........................ 234

图10-4 。 T1接收端1.544MHz边界定时（弹性商店启用） ..................................... ......... 234

图10-5 。 T1接收端2.048MHz的边界定时（弹性商店启用） ..................................... ......... 235

图10-6 。 T1接收方交织总线操作字节模式........................................ .......................... 236

图10-7 。 T1接收方交织总线操作帧模式........................................ ...................... 237

图10-8 。 T1发射端D4时序............................................................................................................... 238

图10-9 。 T1发送方的ESF Timing............................................................................................................. 238

图10-10 。 T1发送方的边界定时（弹性商店禁用） ....................................... ..................... 239

图10-11 。 T1发射端1.544MHz边界定时（弹性商店启用） ..................................... ...... 239

图10-12 。 T1发射端2.048MHz的边界定时（弹性商店启用） ..................................... ...... 240

图10-13 。 T1发送方的交织总线操作字节模式........................................ ....................... 241

图10-14 。 T1发射交错总线操作帧模式.......................................... .......................... 242

图10-15 。 E1接收端Timing.................................................................................................................... 243

图10-16 。 E1接收端边界定时（弹性商店禁用） ....................................... ..................... 243

图10-17 。 E1接收端1.544MHz边界定时（弹性商店启用） ..................................... ....... 244

图10-18 。 E1接收端2.048MHz的边界定时（弹性商店启用） ..................................... ....... 244

图10-19 。 E1发送端Timing................................................................................................................... 245

图10-20 。 E1发送端边界定时（弹性商店禁用） ....................................... .................... 245

图10-21 。 E1发送端1.544MHz边界定时（弹性商店启用） ..................................... ...... 246

图10-22 。 E1发送端2.048MHz的边界定时（弹性商店启用） ..................................... ...... 246

图10-23 。 E1 G.802计时............................................................................................................................... 247

图12-1 。英特尔总线读时序（ BTS = 0 ） ........................................................................................................ 251

图12-2 。英特尔总线写时序（ BTS = 0)......................................................................................................... 251

图12-3 。摩托罗拉总线读时序（ BTS = 1 ） ......................................... .................................................. ...... 252

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