J

JTAG
   boundary scan register
   bypass register
   instruction register
   interface
      instruction register
      JTCK signal
      JTDI signal
      JTDO signal
      JTMS signal [1] [2]
      Tap controller
      test access port
   Shift-DR state
   Update-IR state
   Capture-DR state
   interface
   Shift-DR state
   Update-DR state
JTCK, signal [1] [2]
JTDI, signal [1] [2] [3]
JTDO, signal [1] [2]
JTLB (joint TLB)
JTMS, signal [1] [2]