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SPEAR600 Datasheet(PDF) 84 Page - STMicroelectronics |
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SPEAR600 Datasheet(HTML) 84 Page - STMicroelectronics |
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84 / 97 page  Timing characteristics SPEAr600 84/97 Doc ID 16259 Rev 3 6.7 SMI timing characteristics The characterization timing is given for an output load of 5 pF on the clock and 10 pF on the other pads. The operating conditions are in worst case V=0.90 V, TA=125° C and in best case V=1.10 V, TA= 40° C. 6.7.1 SMI timing specifications Figure 41. SMI waveforms Figure 42. Block diagram of the SMI pins Table 54. SMI timings in default configuration Signal Parameter Value Description SMI_CLK tCLK 50 ns SMI period (normal mode). tCLK 20 ns SMI period (fast read mode). tr 0.8 ns Transition times. tf 0.84 ns SMI_DATAIN tSETUP 4.5 ns Max setup time and min hold time of data in, referred to SMI_CLK rising edge. tHOLD -0.08 ns Thold SMI_CLK SMI_DATAIN Tclock Tr Tf Tsetup Tmin Tmax SM I_DATAOUT Tfmin Tfmax SM I_CS_0 SM I_CS_1 SM I_CS_3 Trmin Trmax Q Q SET CLR D Q Q SET CLR D Q Q SET CLR D SMI_CLK SMI_CLK SMI_DATAIN SMI_DATAOUT SMI_CS_n (n= 0,1,3) SMI_DATAOUT SMI_CS_n (n= 0,1,3) HCLK |
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