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8XC196NP: 8XC196NP to 28F400BX Interface

The following is a block diagram of the connections made between the 196NP and the FLASH device.

The above scheme results in the following address map.

196NP address28F400BX address
F0000h-F3FFFh00000h-03FFFh
F4000h-F5FFFh40000h-05FFFh
F6000h-F7FFFh60000h-07FFFh
F8000h-EFFFFh80000h-1FFFFh
C0000h-DFFFFh20000h-3FFFFh
A0000h-BFFFFh40000h-5FFFFh
80000h-9FFFFh60000h-7FFFFh

The following memory map shows where the 196NP would address if the upper address lines are NOT inverted.

The following map illustrates the memory map with the address lines inverted. Notice that the 196NP boot-up address of 0F2080h now falls in the 16Kbyte boot block region of the flash.



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