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TNETV2664FIBZWT 데이터시트(PDF) 239 Page - Texas Instruments |
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TNETV2664FIBZWT 데이터시트(HTML) 239 Page - Texas Instruments |
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239 / 249 page ![]() TCK TDO TDI/TMS/TRST 1 2 3 4 2 TMS320C6424 www.ti.com SPRS347D – MARCH 2007 – REVISED DECEMBER 2009 Table 6-92. JTAG ID Register Selection Bit Descriptions BIT NAME DESCRIPTION 31:28 VARIANT Variant (4-Bit) value. A read from this field always returns 0b0000. 27:12 PART NUMBER Part Number (16-Bit) value. C6424 value: 1011 0111 0010 0001. 11-1 MANUFACTURER Manufacturer (11-Bit) value. C6424 value: 0000 0010 111. 0 LSB LSB. This bit is read as a "1" for C6424. 6.22.2 JTAG Electrical Data/Timing Table 6-93. Timing Requirements for JTAG Test Port (see Figure 6-49) -7/-6/-5/-4 -L/-Q6/-Q5/-Q4 NO. UNIT MIN MAX 1 tc(TCK) Cycle time, TCK 33 ns 3 tsu(TDIV-TCKH) Setup time, TDI/TMS/TRST valid before TCK high 2.5 ns 4 th(TCKH-TDIV) Hold time, TDI/TMS/TRST valid after TCK high 16.5 ns Table 6-94. Switching Characteristics Over Recommended Operating Conditions for JTAG Test Port (see Figure 6-49) -7/-6/-5/-4 -L/-Q6/-Q5/-Q4 NO. PARAMETER UNIT MIN MAX 2 td(TCKL-TDOV) Delay time, TCK low to TDO valid 0 14 ns Figure 6-49. JTAG Test-Port Timing Copyright © 2007–2009, Texas Instruments Incorporated Peripheral Information and Electrical Specifications 239 Submit Documentation Feedback Product Folder Link(s): TMS320C6424 |
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