Download DSP56F802, 56F802
Transcript
Reset, Stop, Wait, Mode Select, and Interrupt Timing 3.6 Reset, Stop, Wait, Mode Select, and Interrupt Timing Table 3-10 Reset, Stop, Wait, Mode Select, and Interrupt Timing1, 3 Operating Conditions: VSS = VSSA = 0 V, VDD = VDDA = 3.0–3.6 V, TA = –40° to +85°C, CL ≤ 50pF Characteristic Symbol Min Max Unit RESET Assertion to Address, Data and Control Signals High Impedance tRAZ — 21 ns Minimum RESET Assertion Duration2 OMR Bit 6 = 0 OMR Bit 6 = 1 tRA 275,000T 128T — — ns ns RESET De-assertion to First External Address Output tRDA 33T 34T ns Edge-sensitive Interrupt Request Width tIRW 1.5T — ns 1. In the formulas, T = clock cycle. For an operating frequency of 80MHz, T = 12.5ns. 2. Circuit stabilization delay is required during reset when using an external clock or crystal oscillator in two cases: • After power-on reset • When recovering from Stop state 3. Parameters listed are guaranteed by design. General Purpose I/O Pin tIG IRQA b) General Purpose I/O Figure 3-9 External Level-Sensitive Interrupt Timing 56F802 Technical Data, Rev. 9 Freescale Semiconductor 25