DS26514 4-Port T1/E1/J1 Transceiver
12.1
12.2
THERMAL CHARACTERISTICS ..................................................................................................284
LINE INTERFACE CHARACTERISTICS ........................................................................................284
13. AC TIMING CHARACTERISTICS ..................................................................................285
13.1
13.1.1 SPI Bus Mode............................................................................................................................... 285
MICROPROCESSOR BUS AC CHARACTERISTICS.......................................................................285
13.2
JTAG INTERFACE TIMING .......................................................................................................296
14. JTAG BOUNDARY SCAN AND TEST ACCESS PORT ................................................297
14.1
TAP CONTROLLER STATE MACHINE........................................................................................298
14.1.1 Test-Logic-Reset........................................................................................................................... 298
14.1.2 Run-Test-Idle................................................................................................................................ 298
14.1.3 Select-DR-Scan............................................................................................................................ 298
14.1.4 Capture-DR .................................................................................................................................. 298
14.1.5 Shift-DR........................................................................................................................................ 298
14.1.6 Exit1-DR....................................................................................................................................... 298
14.1.7 Pause-DR..................................................................................................................................... 298
14.1.8 Exit2-DR....................................................................................................................................... 298
14.1.9 Update-DR.................................................................................................................................... 298
14.1.10
14.1.11
14.1.12
14.1.13
14.1.14
14.1.15
14.1.16
Select-IR-Scan.......................................................................................................................... 298
Capture-IR ................................................................................................................................ 299
Shift-IR...................................................................................................................................... 299
Exit1-IR ..................................................................................................................................... 299
Pause-IR................................................................................................................................... 299
Exit2-IR ..................................................................................................................................... 299
Update-IR.................................................................................................................................. 299
14.2
INSTRUCTION REGISTER.........................................................................................................301
14.2.1 SAMPLE:PRELOAD ..................................................................................................................... 301
14.2.2 BYPASS....................................................................................................................................... 301
14.2.3 EXTEST ....................................................................................................................................... 301
14.2.4 CLAMP......................................................................................................................................... 301
14.2.5 HIGHZ .......................................................................................................................................... 301
14.2.6 IDCODE ....................................................................................................................................... 301
14.3
14.4
JTAG ID CODES....................................................................................................................302
TEST REGISTERS ...................................................................................................................302
14.4.1 Boundary Scan Register ............................................................................................................... 302
14.4.2 Bypass Register............................................................................................................................ 302
14.4.3 Identification Register.................................................................................................................... 302
15. PIN CONFIGURATION...................................................................................................303
15.1
PIN CONFIGURATION—256-BALL TE-CSBGA .........................................................................303
16. PACKAGE INFORMATION............................................................................................304
17. DOCUMENT REVISION HISTORY ................................................................................305
19-5856; Rev 4; 5/11
4 of 305
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