Transcription of 特集JTAGってどう使う？ 第1章 JTAGとは何か
1 JTAG . 1 JTAG . IEEE .. JTAG IEEE outline package . JTAG .. IEEE .. JTAG . JTAG 1985 . JETAG Joint European Test IC PLD ISP CPU Action Group . Philips British Telecom . Ericsson Siemens . Thomson-CSF . 1986 Texas Instruments IBM AT&T. Digital Equipment . JTAG European JTAG Joint Test Action JTAG IC Group 1987 DOD . IC VHSIC Very High Speed Integration Circuit . JTAG version . TTL DIP dual inline package 1988 JTAG version IEEE . Testability Bus Standard Committee 1990. 2 15 IEEE std .. 1980 QFP quad flat package SOP small JTAG . JTAG .. JTAG . IEEE std Test Access Port and Boundary-Scan Architecture .. 1 . IEEE . 20 Design Wave Magazine 2000 February TDI . JTAG .. TAP Test Access Port 16.
2 JTAG TMS Test Mode Select . TCK Test Clock .. JTAG JTAG . TRST Test Reset TAP . TMS H TCK . JTAG TAP .. 1 JTAG . 1 JTAG JTAG . JTAG .. IEEE .. IC . IC . 1. JTAG IC .. JTAG.. JTAG . 2 JTAG .. TDI. TAP. TDO.. JTAG TAP Test Access Port .. TMS TCK. TDI TDO TMS TCK TRST 1 .. 5 .. TDI Test Data Input .. I/O I/O.. M. TDI U MUX TDO. X.. ) .. BSR . * TDI TDO Test Data Output .. TAP. DR DR. DR DR. DR. + TMS DR.. TCK . IR DR . TRST . IR DR . IDcode 2 JTAG . Design Wave Magazine 2000 February 21.
