83C196EA Datasheet, PDF (19/40 Pages) Intel Corporation – CHMOS 16-BIT MICROCONTROLLER

83C196EA CHMOS 16-BIT MICROCONTROLLER — AUTOMOTIVE
5.0 ADDRESS MAP
Table 5. 83C196EA Address Map
Hex
Address
Description (Note 1, Note 2)
Addressing
Modes
FFFFFF
FF4000
External device (memory or I/O) connected to address/data bus
Indirect, indexed,
extended
FF3FFF
FF2400
Program memory (Note 3)
Indirect, indexed,
extended
FF23FF
FF2200
Program memory (Note 3)
Indirect, indexed,
extended
FF21FF
FF20C0
Special-purpose memory (PIH vectors; Note 3)
Indirect, indexed,
extended
FF20BF Program memory (Note 3);
FF2080 (After reset, the first instruction is fetched from FF2080H.)
Indirect, indexed,
extended
FF207F
FF2000
Special-purpose memory (CCBs, interrupt vectors, PTS vectors; Note 3)
Indirect, indexed,
extended
FF1FFF
FF1000
External device (memory or I/O) connected to address/data bus
Indirect, indexed,
extended
FF0FFF
FF0400
Internal code/data RAM (identically mapped from page 00H)
Indirect, indexed,
extended
FF03FF
FF0000
Reserved for in-circuit emulators
—
FEFFFF Overlaid memory (reserved for future devices);
1F0000 locations xF0000–xF03FFH are reserved for in-circuit emulators
Indirect, indexed,
extended
1EFFFF
004000
External device (memory or I/O) connected to address/data bus
Indirect, indexed,
extended
003FFF A copy of internal ROM (FF2400–FF3FFFH) if CCB1.2=0
002400 External memory if CCB1.2=1
Indirect, indexed,
extended
0023FF
002000
External device (memory or I/O) connected to address/data bus
Indirect, indexed,
extended
001FFF
001FE0
Memory-mapped special-function registers (SFRs)
Indirect, indexed,
extended
001FDF
001C00
Peripheral special-function registers (SFRs)
Indirect, indexed,
extended,
windowed direct
001BFF
001000
External device (memory or I/O) connected to address/data bus
Indirect, indexed,
extended
000FFF
000400
Internal code/data RAM (identically mapped into page FFH)
Indirect, indexed,
extended
NOTES:
1. Unless otherwise noted, write 0FFH to reserved memory locations and write 0 to reserved SFR bits.
2. The contents or functions of reserved locations may change in future device revisions, in which case a
program that relies on one or more of these locations might not function properly.
3. External memory if EA# is low; internal ROM if EA# is high.
ADVANCE INFORMATION
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