Explain the operation of the circuit above

2 A 3 A 4 Ag SA 6 Ag 7 As 8 A 9 A 20 CC DIR 100K www.Hi 2MHz crystal 20 pF HI-O 1 Direction control 01/ Explain the operation of the circuit above NO 2 SAF 74LS245 10 GND From intempt SOUTH 38 34 X 800 SD 5. G 19 Enable CLK OUT HLDA INTA RESETIN TRAP RST7.5 RST65 RST5.5 INTR HOLD 9+5V 40 Voo READY 8. 18 B 17. B 16 B4 15 B 14 8085 A 813 87 12 B 11 #k A A ADy AD ALE 14 RESET OUT 30 31 103 Fid WR 9+5V 20 Voc G 74L5244 Octal bus driver 18-A 19 tal 9+5V 20 Voc 74LS373 OGND +5V 20 7418245 Bidirectional bus driver DIR GND Voc 0 745130 3-10-8 decader 10 As Ag A High- A order address DUS 0, 0 6 GND 18-A Ag Low order adresa bus -D -D D D Dota bus -D 15 D 17 0 10 Do % 10 TOR a 0,13 MEMIN 14 SEM Control bus 02/ For the figure above, are there Bus drive connected with low order address bus? why?