DS26519 16-Port T1/E1/J1 Transceiver
13. AC TIMING CHARACTERISTICS ..................................................................................289
13.1
MICROPROCESSOR BUS AC CHARACTERISTICS........................................................................289
13.1.1 SPI Bus Mode .................................................................................................................................... 289
13.2
13.3
JTAG INTERFACE TIMING.........................................................................................................300
SYSTEM CLOCK AC CHARACTERISTICS ....................................................................................301
14. JTAG BOUNDARY SCAN AND TEST ACCESS PORT................................................302
14.1
TAP CONTROLLER STATE MACHINE .........................................................................................303
14.1.1 Test-Logic-Reset................................................................................................................................ 303
14.1.2 Run-Test-Idle ..................................................................................................................................... 303
14.1.3 Select-DR-Scan ................................................................................................................................. 303
14.1.4 Capture-DR........................................................................................................................................ 303
14.1.5 Shift-DR.............................................................................................................................................. 303
14.1.6 Exit1-DR............................................................................................................................................. 303
14.1.7 Pause-DR........................................................................................................................................... 303
14.1.8 Exit2-DR............................................................................................................................................. 303
14.1.9 Update-DR ......................................................................................................................................... 303
14.1.10
14.1.11
14.1.12
14.1.13
14.1.14
14.1.15
14.1.16
Select-IR-Scan ............................................................................................................................... 303
Capture-IR...................................................................................................................................... 304
Shift-IR............................................................................................................................................ 304
Exit1-IR........................................................................................................................................... 304
Pause-IR......................................................................................................................................... 304
Exit2-IR........................................................................................................................................... 304
Update-IR ....................................................................................................................................... 304
14.2
INSTRUCTION REGISTER...........................................................................................................306
14.2.1 SAMPLE:PRELOAD .......................................................................................................................... 306
14.2.2 BYPASS............................................................................................................................................. 306
14.2.3 EXTEST ............................................................................................................................................. 306
14.2.4 CLAMP............................................................................................................................................... 306
14.2.5 HIGHZ................................................................................................................................................ 306
14.2.6 IDCODE ............................................................................................................................................. 306
14.3
14.4
JTAG ID CODES......................................................................................................................307
TEST REGISTERS .....................................................................................................................307
14.4.1 Boundary Scan Register.................................................................................................................... 307
14.4.2 Bypass Register................................................................................................................................. 307
14.4.3 Identification Register......................................................................................................................... 307
15. PIN CONFIGURATION...................................................................................................308
15.1
PIN CONFIGURATION—484-BALL HSBGA ................................................................................308
16. PACKAGE INFORMATION............................................................................................309
16.1
484-BALL HSBGA (56-G6038-002).........................................................................................309
17. DOCUMENT REVISION HISTORY ................................................................................310
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