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AM4376 Datasheet(PDF) 252 Page - Texas Instruments |
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AM4376 Datasheet(HTML) 252 Page - Texas Instruments |
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252 / 261 page ![]() 3 TCK TDO TDI/TMS 2 4 1 1a 1b AM4376, AM4377, AM4378, AM4379 SPRS851B – JUNE 2014 – REVISED APRIL 2015 www.ti.com 5.13 Emulation and Debug 5.13.1 IEEE 1149.1 JTAG 5.13.1.1 JTAG Electrical Data and Timing Table 5-135. Timing Requirements for JTAG (see Figure 5-146) OPP100 OPP50 NO. UNIT MIN MAX MIN MAX 1 tc(TCK) Cycle time, TCK 60 60 ns 1a tw(TCKH) Pulse duration, TCK high (40% of tc) 24 24 ns 1b tw(TCKL) Pulse duration, TCK low (40% of tc) 24 24 ns tsu(TDI-TCKH) Input setup time, TDI valid to TCK high 3 3 ns 3 tsu(TMS-TCKH) Input setup time, TMS valid to TCK high 3 3 ns th(TCKH-TDI) Input hold time, TDI valid from TCK high 8 8 ns 4 th(TCKH-TMS) Input hold time, TMS valid from TCK high 8 8 ns Table 5-136. Switching Characteristics for JTAG (see Figure 5-146) OPP100 OPP50 NO. PARAMETER UNIT MIN MAX MIN MAX 2 td(TCKL-TDO) Delay time, TCK low to TDO valid 0 23 0 23 ns Figure 5-146. JTAG Timing 252 Specifications Copyright © 2014–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: AM4376 AM4377 AM4378 AM4379 |
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