80C196EA datasheet(21/46 Pages) INTEL

21 / 46 page

ADVANCE INFORMATION

8xC196EA — AUTOMOTIVE

5.0

ADDRESS MAP

Table 5. 8xC196EA Address Map (Sheet 1 of 2)

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

FF2080

Program memory (Note 3);

(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

1F0000

Overlaid memory (reserved for future devices);

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

002400

A copy of internal ROM (FF2400–FF3FFFH) if CCB1.2=0

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:

Unless otherwise noted, write 0FFH to reserved memory locations and write 0 to reserved SFR bits.

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.

External memory if EA# is low; internal ROM if EA# is high.

80C196EA Datasheet(PDF) 21 Page - Intel Corporation

80C196EA Datasheet(HTML) 21 Page - Intel Corporation

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