hello everyone, i am using 89c51 interfacing with 6264
in 89c51 we have ram = 4Kbyte i.e for the further size i need to switch to 6264
total address line on 6264= 12 so A15=/CS1=0 A14=CS2=1 A13= gnd=0 A0-A7 = P0.0 to P0.7 of 89c51 trough latch A8-A12 = P2.0 to P2.4 of 89c51 D0-D7=P1 for data /WE = /we of 89c51 /RD = /Rd of 89c51 ALE connected to clk of latch this is my hardware
now i have sstarted programming in c i am using _at_ for the address what all care i should take to select 6264 i have taken care of A15,A14,A13 and ALE can u show me sample code for it 4000 is intermal ram and for external it is 4001 address what if i select 4000 for external ram, does it conflict with internal ram as soon as i transfer address does data is passed immediately? thank u in advance for further inputs from me pls let me konw
View all questions in Keil forum