Address Partitions; Address Map - Intel 87C196CA Supplement To User’s Manual

This chapter describes the differences in the address space of the 8XC196Lx from that of the
8XC196Kx.
3.1

ADDRESS PARTITIONS

Table 3-1 is an address map of the 8XC196Lx and 8XC196Kx microcontroller family members.
Device and Hex Address Range
FFFF FFFF FFFF
A000 6000 6000
9FFF 5FFF 5FFF
2080 2080 2080
207F 207F 207F
2000 2000 2000
1FFF 1FFF 1FFF
1FE0 1FE0 1FE0
1FDF 1FDF 1FDF
1F00 1F00 1F00
1EFF
—
1E00
1DFF 1EFF 1EFF
1C00 1C00 1C00
— —
NOTES:
1. After a reset, the device fetches its first instruction from 2080H.
2. The content or function of these locations may change in future device revisions, in which case
a program that relies on a location in this range might not function properly.
Table 3-1. Address Map
FFFF FFFF
8000 A000
7FFF 9FFF
2080 2080
207F 207F
2000 2000
1FFF 1FFF
1FE0 1FE0
1FDF 1FDF
1F00 1F00
— — —
1EFF 1EFF
0300 1C00
— — —
ADDRESS SPACE
Description
External device (memory
FFFF
or I/O) connected to
E000
address/data bus
Program memory
DFFF (internal nonvolatile or
2080 external memory); see
Note 1
Special-purpose memory
207F
(internal nonvolatile or
2000
external memory)
1FFF
Memory-mapped SFRs
1FE0
Peripheral SFRs
1FDF
(Includes J1850 SFRs on
1F00
87C196LB)
— CAN SFRs
External device (memory
or I/O) connected to
1EFF
address/data bus;
1E00
(future SFR expansion;
see Note 2)
1DFF
Register RAM
1C00
CHAPTER 3
Addressing
Modes
Indirect or
indexed
Indirect or
indexed
Indirect or
indexed
Indirect or
indexed
Indirect,
indexed, or
windowed
direct
Indirect,
indexed, or
windowed
direct
Indirect or
indexed
Indirect,
indexed, or
windowed
direct
3-1