DS26521 datasheet(4/258 Pages) MAXIM

4 / 258 page

DS26521 Single T1/E1/J1 Transceiver

4 of 258

13.

JTAG BOUNDARY SCAN AND TEST ACCESS PORT ..............................................250

13.1

TAP CONTROLLER STATE MACHINE .........................................................................................251

13.1.1

Test-Logic-Reset................................................................................................................................ 251

13.1.2

Run-Test-Idle ..................................................................................................................................... 251

13.1.3

Select-DR-Scan ................................................................................................................................. 251

13.1.4

Capture-DR ........................................................................................................................................ 251

13.1.5

Shift-DR.............................................................................................................................................. 251

13.1.6

Exit1-DR ............................................................................................................................................. 251

13.1.7

Pause-DR........................................................................................................................................... 251

13.1.8

Exit2-DR ............................................................................................................................................. 251

13.1.9

Update-DR ......................................................................................................................................... 251

13.1.10

Select-IR-Scan ............................................................................................................................... 251

13.1.11

Capture-IR ...................................................................................................................................... 252

13.1.12

Shift-IR............................................................................................................................................ 252

13.1.13

Exit1-IR........................................................................................................................................... 252

13.1.14

Pause-IR......................................................................................................................................... 252

13.1.15

Exit2-IR........................................................................................................................................... 252

13.1.16

Update-IR ....................................................................................................................................... 252

13.2

INSTRUCTION REGISTER...........................................................................................................254

13.2.1

SAMPLE:PRELOAD .......................................................................................................................... 254

13.2.2

BYPASS ............................................................................................................................................. 254

13.2.3

EXTEST ............................................................................................................................................. 254

13.2.4

CLAMP ............................................................................................................................................... 254

13.2.5

HIGHZ ................................................................................................................................................ 254

13.2.6

IDCODE ............................................................................................................................................. 254

13.3

JTAG ID CODES......................................................................................................................255

13.4

TEST REGISTERS .....................................................................................................................255

13.4.1

Boundary Scan Register .................................................................................................................... 255

13.4.2

Bypass Register ................................................................................................................................. 255

13.4.3

Identification Register......................................................................................................................... 255

14.

PIN CONFIGURATION .................................................................................................256

15.

PACKAGE INFORMATION ..........................................................................................257

15.1

64-PIN LQFP (56-G4019-001) ................................................................................................257

16.

DOCUMENT REVISION HISTORY...............................................................................258

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