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MCIMX503CVM8B 数据表(PDF) 87 Page - Freescale Semiconductor, Inc |
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MCIMX503CVM8B 数据表(HTML) 87 Page - Freescale Semiconductor, Inc |
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87 / 134 page ![]() Electrical Characteristics i.MX50 Applications Processors for Consumer Products, Rev. 2 Freescale Semiconductor 87 Figure 50. TRST Timing Diagram Table 63. JTAG Timing ID Parameter1,2 All Frequencies Unit Min Max SJ0 TCK frequency of operation 1/(3•TDC) 1 1 T DC = target frequency of SJC 0.001 22 MHz SJ1 TCK cycle time in crystal mode 45 — ns SJ2 TCK clock pulse width measured at VM 2 2 V M = mid-point voltage 22.5 — ns SJ3 TCK rise and fall times — 3 ns SJ4 Boundary scan input data set-up time 5 — ns SJ5 Boundary scan input data hold time 24 — ns SJ6 TCK low to output data valid — 40 ns SJ7 TCK low to output high impedance — 40 ns SJ8 TMS, TDI data set-up time 5 — ns SJ9 TMS, TDI data hold time 25 — ns SJ10 TCK low to TDO data valid — 44 ns SJ11 TCK low to TDO high impedance — 44 ns SJ12 TRST assert time 100 — ns SJ13 TRST set-up time to TCK low 40 — ns TCK (Input) TRST (Input) SJ13 SJ12 |
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