JTAG - definizione. Che cos'è JTAG
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Cosa (chi) è JTAG - definizione

STANDARD SERIAL INTERFACE FOR INTEGRATED CIRCUITS
Wiggler (JTAG); Jtag; 1149.1; IEEE 1149; JTAG connector; JTAG header; CJTAG; Serial Wire Debug; Joint Test Action Group; Test access port; EJTAG; JTAG interface; JTAG port
  • Example of JTAG with reduced pin count

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Joint Test Action Group (Reference: org., Philips, IC)
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JTAG (named after the Joint Test Action Group which codified it) is an industry standard for verifying designs and testing printed circuit boards after manufacture.

Wikipedia

JTAG

JTAG (named after the Joint Test Action Group which codified it) is an industry standard for verifying designs and testing printed circuit boards after manufacture.

JTAG implements standards for on-chip instrumentation in electronic design automation (EDA) as a complementary tool to digital simulation. It specifies the use of a dedicated debug port implementing a serial communications interface for low-overhead access without requiring direct external access to the system address and data buses. The interface connects to an on-chip Test Access Port (TAP) that implements a stateful protocol to access a set of test registers that present chip logic levels and device capabilities of various parts.

The Joint Test Action Group formed in 1985 to develop a method of verifying designs and testing printed circuit boards after manufacture. In 1990 the Institute of Electrical and Electronics Engineers codified the results of the effort in IEEE Standard 1149.1-1990, entitled Standard Test Access Port and Boundary-Scan Architecture.

The JTAG standards have been extended by many semiconductor chip manufacturers with specialized variants to provide vendor-specific features.

Esempi dal corpus di testo per JTAG
1. Washington and Tokyo are banking on the idea that early warning of the kind provided by the Joint Tactical Ground Station, or JTAG, and another state–of–the–art "X–band" radar station recently deployed nearby will lead to the latter.