
ADSP-21020
IEEE 1149.1 Test Access Port
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| K/B/T Grade | K/B/T Grade | B/T Grade | K Grade |
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| 20 MHz | 25 MHz | 30 MHz | 33.3 MHz | Frequency Dependency* |
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Parameter | Min Max | Min Max | Min Max | Min Max | Min | Max | Unit | ||
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Timing Requirement: |
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tTCK | TCK Period | 50 | 40 | 33 | 30 | tCK |
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tSTAP | TDI, TMS Setup before TCK High | 5 | 5 | 5 | 5 |
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tHTAP | TDI, TMS Hold after TCK High | 6 | 6 | 6 | 6 |
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tSSYS | System Inputs Setup before TCK High | 7 | 7 | 7 | 7 |
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tHSYS | System Inputs Hold after TCK High | 9 | 9 | 9 | 9 |
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tTRSTW | TRST | Pulse Width | 200 | 160 | 132 | 120 |
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Switching Characteristic: |
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tDTDO | TDO Delay from TCK Low | 15 | 15 | 15 | 15 |
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tDSYS | System Outputs Delay from TCK Low | 26 | 26 | 26 | 26 |
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NOTES
*DT = tC – 50 ns
System Inputs =
System Outputs =
TIMEXP.
See the IEEE 1149.1 Test Access Port chapter of the
REV. C |