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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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DACREF Scheda tecnica(PDF) 24 Page - ATMEL Corporation |
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DACREF Scheda tecnica(HTML) 24 Page - ATMEL Corporation |
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24 / 30 page  24 AVR32768 32157A-AVR-12/10 14 JTAG and Nexus debug ports 14.1 JTAG port interface Figure 14-1. JTAG port interface example schematic. TCK TDO TMS RESET TDI 100 nF VDD EVTO 7 8 TDO 3 VCC 4 TMS 5 RESET 6 TDI 9 GND 10 TCK 1 GND 2 2 x 5 header Table 14-1. JTAG port interface checklist. Signal name Recommended pin connection Description TMS Test mode select, sampled on rising TCK TDO Test data output, driven on falling TCK TCK Test clock, fully asynchronous to system clock frequency RESET Device external reset line TDI Test data input, sampled on rising TCK EVTO Event output, not used 14.2 Nexus port interface Do not use any capacitors on NEXUS lines because they can cause a speed limitation. NEXUS uses GPIO multiplexed lines, and these should be dedicated for NEXUS when used. |
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