figure 4.20

Figure 4.4 example to help

7.1 Call the four last samples of SIGIN, S3, S2. S1, So, with So being the earliest sample and Sa the latest This order is the natural order in a shift register with the input on the left, -S--S-So but the re- verse of the order on timing diagrams like Fig. 4.20 Write the equation for a circuit that finds the majority of the last 3 samples, S3, S2, S. See FIGURE 44 7.2 Four samples of the start bit must be either 0000, 0010, 0100,or 0001 to turn on GOTSTART. Make a Kar- naugh map for the FindStart circuit, and from it write an equation for GoTSTART in terms of S3, S2. S1, So. SIGIN START 4th low GOTSTART FIGURE 4.20 FIGURE 4.4A midi Serial Input (SERIN) with some noise on it. Noise may be picked up by long leads, particularly unshielded leads that run close to motors or power cords IDLE region Shows 8 samples across a bit DLE SERIN data bit 7 Sample Values0 000 10000 |knight 201 1 START STOP time CLK 7.1 Call the four last samples of SIGIN, S3, S2. S1, So, with So being the earliest sample and Sa the latest This order is the natural order in a shift register with the input on the left, -S--S-So but the re- verse of the order on timing diagrams like Fig. 4.20 Write the equation for a circuit that finds the majority of the last 3 samples, S3, S2, S. See FIGURE 44 7.2 Four samples of the start bit must be either 0000, 0010, 0100,or 0001 to turn on GOTSTART. Make a Kar- naugh map for the FindStart circuit, and from it write an equation for GoTSTART in terms of S3, S2. S1, So. SIGIN START 4th low GOTSTART FIGURE 4.20 FIGURE 4.4A midi Serial Input (SERIN) with some noise on it. Noise may be picked up by long leads, particularly unshielded leads that run close to motors or power cords IDLE region Shows 8 samples across a bit DLE SERIN data bit 7 Sample Values0 000 10000 |knight 201 1 START STOP time CLK