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AC207-DS04-405-R Datasheet(PDF) 44 Page - Broadcom Corporation. |
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AC207-DS04-405-R Datasheet(HTML) 44 Page - Broadcom Corporation. |
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44 / 60 page  AC207 Preliminary Data Sheet 07/08/02 B roa dcom Page 34 LED Display Matrix Document AC207-DS04-405-R LED DISPLAY MATRIX The LED Display uses refresh technique. By using the LED display matrix, the number of ports to drive the LED can be significantly reduced. 2 LED’s are assigned for each port. On, Off, and Flash states are used to indicate different information. With reduced LED counts, and reduced number of signals, the LED display will be easier to route on the board, and less costly. Figure 5: LED Display Matrix LED_LN[5] LED_D[0] LED_LN[4] LED_LN[3] LED_LN[2] LED_LN[1] LED_LN[0] LED_D[1] LED_D[2] LED_D[3] LED_D[4] LED_D[5] LED_D[6] LED_D[7] D? LE D? LE D? LE D? LE D? LE D? LE D LE D LE D LE D LE D LE D LE D LE D LE D LE D LE D LE D LE D? LE D? LE D? LE D? LE D? LE D? LE D LE D LE D LE D LE D LE D LE D LE D LE D LE D LE D LE D LE D? LE D? LE D LE D LE D? LE D LE D? LE D? LE D? LE D LE D LE D LE 330 OHM 330 OHM 330 OHM 330 OHM 330 OHM 330 OHM 330 OHM 330 OHM |
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