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8XC196NT Datasheet(PDF) 3 Page - Intel Corporation |
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8XC196NT Datasheet(HTML) 3 Page - Intel Corporation |
3 / 31 page 8XC196NT 8XC196NT Memory Map Address Description (Note 7) FFFFFFH External Memory FFA000H FF9FFFH Internal OTPROM or External Memory (Determined by EA Pin) FF2080H RESET at FF2080H FF207FH Reserved Memory (Internal OTPROM or External Memory) FF2000H (Determined by EA Pin) FF1FFFH External Memory FF0600H FF05FFH Internal RAM (Identically Mapped into 00400H – 005FFH) FF0400H FF03FFH External Memory FF0100H FF00FFH Reserved for ICE FF0000H FEFFFFH External Memory for future devices 100000H FFFFFH 984 Kbytes External Memory 00A000H 009FFFH Internal OTPROM or External Memory (Note 1) 002080H 00207FH Reserved Memory (Internal OTPROM or External Memory) 002000H (Notes 1 3 and 6) 001FFFH Memory Mapped Special Function Registers (SFR’s) 001FE0H 001FDFH Internal Special Function Registers (SFR’s) (Note 5) 001F00H 001EFFH External Memory 000600H 0005FFH Internal RAM 000400H (Address with Indirect or Indexed Modes) 0003FFH Upper Register File (Address with Indirect or Register RAM Indexed Modes or through Windows) (Note 2) 000100H * 0000FFH Register RAM Lower Register File 000018H (Address with Direct 000017H CPU SFR’s Indirect or Indexed 000000H * Modes) (Notes 2 4) NOTES 1 These areas are mapped internal OTPROM if the REMAP bit (CCB22) is set and EA e 5V Otherwise they are external memory 2 Code executed in locations 00000H to 003FFH will be forced external 3 Reserved memory locations must contain 0FFH unless noted 4 Reserved SFR bit locations must be written with 0 5 Refer to 8XC196NT User’s Guide and Quick Reference for SFR descriptions 6 WARNING The contents or functions of reserved memory locations may change with future revisions of the device Therefore a program that relies on one or more of these locations may not function properly 7 The 8XC196NT internally uses 24 bit address but only 20 address lines are bonded out allowing 1 Mbyte external address space 3 |
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