Datasheet

DS26518 8-Port T1/E1/J1 Transceiver
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12.1 THERMAL CHARACTERISTICS....................................................................................................292
12.2 LINE INTERFACE CHARACTERISTICS..........................................................................................292
13. AC TIMING CHARACTERISTICS ..................................................................................293
13.1 MICROPROCESSOR BUS AC CHARACTERISTICS ........................................................................293
13.1.1 SPI Bus Mode .................................................................................................................................... 293
13.2 JTAG INTERFACE TIMING.........................................................................................................303
14. JTAG BOUNDARY SCAN AND TEST ACCESS PORT ................................................304
14.1 TAP CONTROLLER STATE MACHINE .........................................................................................305
14.1.1 Test-Logic-Reset................................................................................................................................ 305
14.1.2 Run-Test-Idle ..................................................................................................................................... 305
14.1.3 Select-DR-Scan ................................................................................................................................. 305
14.1.4 Capture-DR ........................................................................................................................................ 305
14.1.5 Shift-DR.............................................................................................................................................. 305
14.1.6 Exit1-DR............................................................................................................................................. 305
14.1.7 Pause-DR........................................................................................................................................... 305
14.1.8 Exit2-DR............................................................................................................................................. 305
14.1.9 Update-DR ......................................................................................................................................... 305
14.1.10 Select-IR-Scan ............................................................................................................................... 305
14.1.11 Capture-IR ...................................................................................................................................... 306
14.1.12 Shift-IR............................................................................................................................................ 306
14.1.13 Exit1-IR........................................................................................................................................... 306
14.1.14 Pause-IR......................................................................................................................................... 306
14.1.15 Exit2-IR........................................................................................................................................... 306
14.1.16 Update-IR ....................................................................................................................................... 306
14.2 INSTRUCTION REGISTER...........................................................................................................308
14.2.1 SAMPLE:PRELOAD .......................................................................................................................... 308
14.2.2 BYPASS............................................................................................................................................. 308
14.2.3 EXTEST ............................................................................................................................................. 308
14.2.4 CLAMP............................................................................................................................................... 308
14.2.5 HIGHZ ................................................................................................................................................ 308
14.2.6 IDCODE ............................................................................................................................................. 308
14.3 JTAG ID CODES......................................................................................................................309
14.4 TEST REGISTERS .....................................................................................................................309
14.4.1 Boundary Scan Register .................................................................................................................... 309
14.4.2 Bypass Register ................................................................................................................................. 309
14.4.3 Identification Register......................................................................................................................... 309
15. PIN CONFIGURATION...................................................................................................310
15.1 PIN CONFIGURATION—256-BALL TE-CSBGA ..........................................................................310
16. PACKAGE INFORMATION............................................................................................311
17. DOCUMENT REVISION HISTORY ................................................................................312