Maxim-integrated MAXQ7667 Bedienungsanleitung PDF herunterladen (Seite 197)

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__________________________________________________________________________________________________________ 11-8

MAXQ7667 User’s Guide

11.4.6 TAP Communication Examples—IR-Scans and DR-Scans

igures 11-3 and 11-4 illustrate examples of communication between the host JTAG controller and the TAP of the MAXQ7667. The host

controls the TCK and TMS signals to move through the desired TAP states while accessing the selected shift register through the TDI

input and TDO output pair.

Figure 11-3. TAP Controller Debug Mode—IR-Scan Example

NEW INSTRUCTION

INSTRUCTION REGISTER

TCK

TMS

TDI

TDO

CONTROL

STATE

IR SHIFT

IR PARALLEL

OUTPUT

SELECTED

TDO

ENABLE

BYPASS

DON'T CARE OR UNDEFINED

TEST-LOGIC-RESET

RUN-TEST/IDLE

SELECT-DR-SCAN

SELECT-IR-SCAN

CAPTURE-IR

SHIFT-IR

EXIT1-IR

UPDATE-IR

RUN-TEST/IDLE

EXIT2-IR

PAUSE-IR

1 2 ... 192 193 194 195 196 197 198 199 200 201 202 ... 346 347

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