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SN74LVT8986 Datasheet(PDF) 10 Page - Texas Instruments |
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SN74LVT8986 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 47 page SN54LVT8986, SN74LVT8986 3.3-V LINKING ADDRESSABLE SCAN PORTS MULTIDROP-ADDRESSABLE IEEE STD 1149.1 (JTAG) TAP TRANSCEIVERS SCBS759B – OCTOBER 2002 – REVISED APRIL 2003 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 FUNCTION TABLE 3 (secondary TAP configuration using linking shadow protocol) POSITION CONFIG BITS 2–0 STRST 2–0 STCK 2–0 STMS2 STMS1 STMS0 STDO2 STDO1 STDO0 PTDO CTDO CON2 CON1 CON0 H H H H PTCK STMS2† STMS1† STMS0† Z Z Z Z CTDI H H H H H L H PTCK STMS2† STMS1† PTMS Z Z PTDI STDI0 STDI0 H H L H L H H PTCK STMS2† PTMS STMS0† Z PTDI Z STDI1 STDI1 H L H Single device H L L H PTCK STMS2† PTMS PTMS Z STDI0 PTDI STDI1 STDI1 H L L Single device L H H H PTCK PTMS STMS1† STMS0† PTDI Z Z STDI2 STDI2 L H H L H L H PTCK PTMS STMS1† PTMS STDI0 Z PTDI STDI2 STDI2 L H L L L H H PTCK PTMS PTMS STMS0† STDI1 PTDI Z STDI2 STDI2 L L H L L L H PTCK PTMS PTMS PTMS STDI1 STDI0 PTDI STDI2 STDI2 L L L H H H H PTCK STMS2† STMS1† STMS0† Z Z Z Z CTDI H H H H H L H PTCK STMS2† STMS1† PTMS Z Z PTDI Z STDI0 H H L H L H H PTCK STMS2† PTMS STMS0† Z PTDI Z Z STDI1 H L H First device in H L L H PTCK STMS2† PTMS PTMS Z STDI0 PTDI Z STDI1 H L L cascade chain L H H H PTCK PTMS STMS1† STMS0† PTDI Z Z Z STDI2 L H H L H L H PTCK PTMS STMS1† PTMS STDI0 Z PTDI Z STDI2 L H L L L H H PTCK PTMS PTMS STMS0† STDI1 PTDI Z Z STDI2 L L H L L L H PTCK PTMS PTMS PTMS STDI1 STDI0 PTDI Z STDI2 L L L H H H H PTCK STMS2† STMS1† STMS0† Z Z Z Z CTDI H H H H H L H PTCK STMS2† STMS1† PTMS Z Z CTDI Z STDI0 H H L Not first H L H H PTCK STMS2† PTMS STMS0† Z CTDI Z Z STDI1 H L H Not first and not last H L L H PTCK STMS2† PTMS PTMS Z STDI0 CTDI Z STDI1 H L L device in dh i L H H H PTCK PTMS STMS1† STMS0† CTDI Z Z Z STDI2 L H H cascade chain L H L H PTCK PTMS STMS1† PTMS STDI0 Z CTDI Z STDI2 L H L L L H H PTCK PTMS PTMS STMS0† STDI1 CTDI Z Z STDI2 L L H L L L H PTCK PTMS PTMS PTMS STDI1 STDI0 CTDI Z STDI2 L L L H H H H PTCK STMS2† STMS1† STMS0† Z Z Z Z CTDI H H H H H L H PTCK STMS2† STMS1† PTMS Z Z CTDI STDI0 STDI0 H H L H L H H PTCK STMS2† PTMS STMS0† Z CTDI Z STDI1 STDI1 H L H Last device in H L L H PTCK STMS2† PTMS PTMS Z STDI0 CTDI STDI1 STDI1 H L L cascade chain L H H H PTCK PTMS STMS1† STMS0† CTDI Z Z STDI2 STDI2 L H H L H L H PTCK PTMS STMS1† PTMS STDI0 Z CTDI STDI2 STDI2 L H L L L H H PTCK PTMS PTMS STMS0† STDI1 CTDI Z STDI2 STDI2 L L H L L L H PTCK PTMS PTMS PTMS STDI1 STDI0 CTDI STDI2 STDI2 L L L † STMS level before steady-state conditions were established |
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