DS26528

八路T1 / E1 / J1收发器

www.maxim-ic.com

概述

该DS26528是一个单芯片8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

8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

工作原理图

DS26528

T1/E1/J1

网

T1/J1/E1

收发器

x8

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

DS26528G

DS26528G+

DS26528GN

DS26528GN+

温度范围

0 ° C至+ 70°C

0 ° C至+ 70°C

-40 ° C至+ 85°C

-40 ° C至+ 85°C

PIN- PACKAGE

256 TE- CSBGA

256 TE- CSBGA

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 。

1 276

REV ： 081707

DS26528八路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

C

ONTROL

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................................................ ......................................... 27

P

ROCESSOR

I

覆盖整个院落

................................................................................................................27

C

LOCK

S

TRUCTURE

.......................................................................................................................27

背板时钟发生器............................................................................................................... 27

8.2.1

R

ESETS和

P

OWER

-D

OWN

M

副执行秘书办公室

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

I

NITIALIZATION和

C

ONFIGURATION

..............................................................................................30

比如设备初始化序列.............................................. ................................................ 30

8.4.1

G

叶形

R

物资跟不上

....................................................................................................................30

P

ER

-P

ORT

R

物资跟不上

................................................................................................................30

D

EVICE

I

NTERRUPTS

.....................................................................................................................30

S

变体系

B

无源底板

I

覆盖整个院落

...................................................................................................32

弹性商店....................................................................................................................................... 32

IBO Multiplexer..................................................................................................................................... 35

H.100 （ CT总线）兼容.............................................................................................................. 42

接收和发送通道阻塞寄存器............................................ ................................. 43

分数传输支持（间隙时钟模式） .......................................... .................................. 43

接收分数支持（间隙时钟模式） .......................................... ................................... 43

T1 Framing........................................................................................................................................... 44

E1 Framing........................................................................................................................................... 47

T1发射同步.................................................................................................................... 49

信号.............................................................................................................................................. 50

T1数据Link......................................................................................................................................... 54

E1数据Link......................................................................................................................................... 56

维护和报警..................................................................................................................... 57

E1自动生成报警.......................................................................................................... 60

错误计数寄存器.......................................................................................................................... 61

DS0监控Function...................................................................................................................... 63

传输每信道空闲代码插入........................................... ................................................ 64

2 276

8.8.1

8.8.2

8.8.3

8.8.4

8.8.5

8.8.6

8.9

F

RAMERS

......................................................................................................................................44

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

8.9.11

DS26528八路T1 / E1 / J1收发器

8.9.12

8.9.13

8.9.14

8.9.15

8.9.16

8.9.17

收到每通道空闲码Insertion............................................................................................ 64

每通道环回........................................................................................................................ 64

E1 G.706中级CRC- 4更新（仅E1模式） .................................... ............................... 64

T1可编程带内环路代码生成.......................................... ..................................... 65

T1可编程带内环路代码检测.......................................... ...................................... 66

成帧器有效载荷环回................................................................................................................. 67

8.10

8.10.1

8.10.2

HDLC

ONTROLLERS

................................................................................................................68

接收HDLC Controller..................................................................................................................... 68

发送HDLC Controller.................................................................................................................... 71

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

)....................................................................................................73

刘Operation....................................................................................................................................... 76

发射机........................................................................................................................................... 77

接收器............................................................................................................................................... 80

抖动Attenuator.................................................................................................................................... 83

刘环回..................................................................................................................................... 84

8.12

8.12.1

8.12.2

B

IT

-E

RROR

-R

吃

T

美东时间

（ BERT ）F

油膏

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

BERT重复模式设置............................................................................................................... 87

BERT错误Counter............................................................................................................................. 87

9.

9.1

设备寄存器.......................................................................................................88

R

EGISTER

L

ISTINGS

......................................................................................................................88

全球注册List.............................................................................................................................. 90

成帧器注册List............................................................................................................................. 91

刘和BERT注册List................................................................................................................. 98

全球寄存器位地图....................................................................................................................... 99

成帧器寄存器位地图.................................................................................................................... 100

刘寄存器位地图.......................................................................................................................... 108

BERT寄存器位地图...................................................................................................................... 108

9.1.1

9.1.2

9.1.3

9.2

R

EGISTER

B

IT

M

APS

......................................................................................................................99

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

..................................................................................................109

F

RAMER

R

EGISTER

D

EFINITIONS

.................................................................................................124

收到注册Definitions.............................................................................................................. 124

发送寄存器Definitions............................................................................................................. 183

9.4.1

9.4.2

刘

EGISTER

D

EFINITIONS

.........................................................................................................218

BERT

EGISTER

D

EFINITIONS

.....................................................................................................227

10.

功能时序...................................................................................................235

T1

ECEIVER

F

UNCTIONAL

T

即时通信

D

IAGRAMS

..........................................................................235

T1 T

变送器

F

UNCTIONAL

T

即时通信

D

IAGRAMS

....................................................................240

E1

ECEIVER

F

UNCTIONAL

T

即时通信

D

IAGRAMS

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

E1牛逼

变送器

F

UNCTIONAL

T

即时通信

D

IAGRAMS

....................................................................247

T

有源冰箱

C

极特

....................................................................................................251

L

INE

I

覆盖整个院落

C

极特

..........................................................................................251

M

ICROPROCESSOR

B

US

AC - C

极特

........................................................................252

我JTAG

覆盖整个院落

T

即时通信

.........................................................................................................261

S

变体系

C

LOCK

AC - C

极特

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

TAP

ONTROLLER

S

TATE

M

ACHINE

.........................................................................................264

Test-Logic-Reset................................................................................................................................ 264

运行测试空闲..................................................................................................................................... 264

选择DR扫描................................................................................................................................. 264

捕捉-DR ........................................................................................................................................ 264

3的276

10.1

10.2

10.3

10.4

11.

操作PARAMETERS.........................................................................................250

11.1

11.2

12.

AC时序特性............................................... ................................... 252

12.1

12.2

12.3

13.

JTAG边界扫描和测试访问端口........................................... ..... 263

13.1.1

13.1.2

13.1.3

13.1.4

13.1

DS26528八路T1 / E1 / J1收发器

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

Shift-DR.............................................................................................................................................. 264

Exit1-DR............................................................................................................................................. 264

Pause-DR........................................................................................................................................... 264

Exit2-DR............................................................................................................................................. 264

更新DR ......................................................................................................................................... 264

选择红外扫描............................................................................................................................... 264

捕获红外...................................................................................................................................... 265

Shift-IR............................................................................................................................................ 265

Exit1-IR........................................................................................................................................... 265

Pause-IR......................................................................................................................................... 265

Exit2-IR........................................................................................................................................... 265

更新IR ....................................................................................................................................... 265

示例： PRELOAD .......................................................................................................................... 267

BYPASS ............................................................................................................................................. 267

EXTEST ............................................................................................................................................. 267

CLAMP............................................................................................................................................... 267

HIGHZ ................................................................................................................................................ 267

IDCODE ............................................................................................................................................. 267

13.2

13.2.1

13.2.2

13.2.3

13.2.4

13.2.5

13.2.6

I

NSTRUCTION

R

EGISTER

...........................................................................................................267

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

......................................................................................................................268

T

美东时间

R

EGISTERS

.....................................................................................................................268

边界扫描寄存器.................................................................................................................... 268

旁路寄存器................................................................................................................................. 268

鉴定Register......................................................................................................................... 268

14.

15.

16.

PIN CONFIGURATION...................................................................................................273

封装信息................................................ ............................................ 274

256-B

所有

TE - CSBGA （ 56 G6028-001 ） ........................................ ........................................... 274

15.1

文档版本历史............................................... ................................. 275

4 276

DS26528八路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................................................................................................................... 28

图8-2 。设备的中断信息流程图............................................. ................................................ 31

图8-3 。 IBO多路复用器的等效电路， 4.096MHz ........................................... ........................................... 36

图8-4 。 IBO多路复用器的等效电路， 8.192MHz的........................................... ........................................... 37

图8-5 。 IBO多路复用器的等效电路， 16.384MHz的........................................... ......................................... 38

图8-6 。 RSYNC输入的H.100 （ CT总线） Mode................................................................................................... 42

图8-7 。 TSSYNCIO （输入模式）输入的H.100 （ CT总线）模式................................... .................................... 43

图8-8 。 CRC- 4重新计算的方法.................................................................................................................... 64

图8-9 。接收HDLC Example.......................................................................................................................... 70

图8-10 。 HDLC发送留言Example....................................................................................................... 72

图8-11 。基本平衡网络连接.............................................. .................................................. .. 74

图8-12 。 T1 / J1发射脉冲模板.......................................................................................................... 78

图8-13 。 E1发送脉冲模板............................................................................................................... 79

图8-14 。典型监测中的应用................................................................................................................... 81

图8-15 。抖动衰减................................................................................................................................... 83

图8-16 。类似物Loopback................................................................................................................................... 84

图8-17 。本地回环..................................................................................................................................... 84

图8-18 。远程回环................................................................................................................................. 85

图8-19 。双返回...................................................................................................................................... 85

图9-1 。寄存器映射为DS26528.................................................................................................. 89

图10-1 。 T1接收端定时D4 ................................................................................................................ 235

图10-2 。 T1接收端ESF Timing.............................................................................................................. 235

图10-3 。 T1接收端边界定时（弹性商店禁用） ....................................... ........................ 236

图10-4 。 T1接收端1.544MHz边界定时（弹性商店启用） ..................................... ......... 236

图10-5 。 T1接收端2.048MHz的边界定时（弹性商店启用） ..................................... ......... 237

图10-6 。 T1接收方交织总线操作字节模式........................................ .......................... 238

图10-7 。 T1接收方交织总线操作帧模式........................................ ...................... 239

图10-8 。 T1发射端D4时序............................................................................................................... 240

图10-9 。 T1发送方的ESF Timing............................................................................................................. 240

图10-10 。 T1发送方的边界定时（弹性商店禁用） ....................................... ..................... 241

图10-11 。 T1发射端1.544MHz边界定时（弹性商店启用） ..................................... ...... 241

图10-12 。 T1发射端2.048MHz的边界定时（弹性商店启用） ..................................... ...... 242

图10-13 。 T1发送方的交织总线操作字节模式........................................ ....................... 243

图10-14 。 T1发射交错总线操作帧模式.......................................... .......................... 244

图10-15 。 E1接收端Timing.................................................................................................................... 245

图10-16 。 E1接收端边界定时（弹性商店禁用） ....................................... ..................... 245

图10-17 。 E1接收端1.544MHz边界定时（弹性商店启用） ..................................... 246 .......

图10-18 。 E1接收端2.048MHz的边界定时（弹性商店启用） ..................................... 246 .......

图10-19 。 E1发送端Timing................................................................................................................... 247

图10-20 。 E1发送端边界定时（弹性商店禁用） ....................................... .................... 247

图10-21 。 E1发送端1.544MHz边界定时（弹性商店启用） ..................................... ...... 248

图10-22 。 E1发送端2.048MHz的边界定时（弹性商店启用） ..................................... ...... 248

图10-23 。 E1 G.802计时............................................................................................................................... 249

图12-1 。英特尔总线读时序（ BTS = 0 ） ........................................................................................................ 253

图12-2 。英特尔总线写时序（ BTS = 0)......................................................................................................... 253

图12-3 。摩托罗拉总线读时序（ BTS = 1 ） ......................................... .................................................. ...... 254

5 276