
PG 17

get data

calculated addr


	      r.1 ---- s ---<- data bus
		       |
		       |
		       |
	      ad ----- s --->- address bus
		       |
		       |
		       |
	IC6 -----------+
		       |
	IC7 ---- X ----+





direct addr

	      r.1 ---- s ---<- data bus
		       |
		       |
		       |
	      ic ----- s --->- address bus
		       |
		       |
		       |
	IC6 ---- X ----+
		       |
	IC7 ---- X ----+

	