SPRS292 − OCTOBER 2005
JTAG TEST-PORT TIMING
timing requirements for JTAG test port (see Figure 54)
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| GDPA−167 |
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| ZDPA−167 |
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NO. |
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| −200 |
| UNIT |
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| −250 |
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| MIN | MAX |
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1 | tc(TCK) | Cycle time, TCK | 35 |
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3 |
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Setup time, TDI/TMS/TRST | valid before TCK high | 10 |
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4 |
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| valid after TCK high | 7 |
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Hold time, TDI/TMS/TRST |
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switching characteristics over recommended operating conditions for JTAG test port (see Figure 54)
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| GDPA−167 |
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| ZDPA−167 |
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NO. | PARAMETER | −200 |
| UNIT |
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| −250 |
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| MIN | MAX |
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2 |
| 0 | 15 | ns |
| 1 |
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| TCK |
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| 2 | 2 |
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| TDO |
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| 4 |
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| 3 |
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TDI/TMS/TRST
Figure 54. JTAG Test-Port Timing
102 | POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 |