Intel mcs-48 manual Waveforms for Programming, Verify .I.~---PROGRAM

b048/8035L/8748/8748-6/8748-8/803S/803S-8

WAVEFORMS FOR PROGRAMMING

COMBINATION PROGRAMIVERIFY MODE (EPROM'SONLY)

EA 23V5V _----II

. --------- i --- VERIFY .I'"'.~---PROGRAM -----

			, . ----
TO
	'AW +-----<+--f-'WA
DBa-DB, J--		DATA TO BE		---<	NEXT ADDR
		PROGRAMMED VAllO
					VALID x==
	LAST				NEXT
	ADDRESS				ADDRESS
~::		'~~-mt_~W_T_______________________
PROG +5	____ _ _ _ _	==rr_ _ _ _--TI'wo	,.______
+23		0W
				- - -,'-------
+0		___ J

VERIFY MODE (ROM/EPROM)

TO,mrr \I.._______--J/			\_--~/	\'-----
DBa-DB, ==>-__
		ADDRESS	NEXT
		10-71 VALID	ADDRESS
P,,-P,	XI..	A_D_DR_E_S_S_IB_-9_I_V_A_L_'D	--'X...	N_EX_T_A_D_D_R_E_SS_V_A_L_'D	_

NOTES:

1, PROG MUST FLOAT IF EA IS LOW (i.e., ,,23V), OR IF TO = 5V FOR THE 8748, FOR THE 8048 PROG MUST ALWAYS FLOAT,

2.Xl AND X2 DRIVEN BY 3 MHz CLOCK WILL GIVE 5",ec 'CY,THIS IS ACCEPTABLE FOR ·8PARTS AS WELL AS STANDARD PARTS,

The 8748 EPROM can be programmed by either of two Intel products:

1, PROMPT-48 Microcomputer Design Aid, or

2.Universal PROM Programmer (UPP series) peripheral of the Intellec$ Development System with a UPP·848 Personal ity Card.

Note: See the ROM/PROM section for 8048 ROM ordering procedures. To minimize turnaround time on the first 25 pieces 8648 may be specified on the ROM order.

6-17 AFN-013S4A-09