87C196(1998) データシートの表示（PDF） - Intel
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87C196 Datasheet PDF : 38 Pages
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87C196CA/87C196CB - Express
Table 3. 87C196CB Memory Map
Address
Description
Notes
0005FFH
000400H
Internal RAM (Code RAM) (Address with Indirect or Indexed Modes)
0003FFH
000100H
Register RAM ± Upper Register File (Address with Indirect or Indexed Modes or
through Windows.)
(2)
0000FFH
000018H
Register RAM ± Lower Register File. (Address with Direct, Indirect, or Indexed
Modes.)
(2)
000017H
000000H
CPU SFR's
(4)
NOTES:
1. These areas are mapped internal EPROM if the REMAP bit (CCB2.2) is set and EA# = 5 V. Otherwise they
are external memory.
2. Code executed in locations 0000H to 003FFH is forced external.
3. Reserved memory locations must contain 0FFH unless noted.
4. Reserved SFR bit locations must be written with 0.
5. Refer to 8XC196CB User’s Guide for SFR, CAN and Paging Descriptions.
Table 4. 87C196CA Memory Map
Address
Description
00FFFFH
00A000H
External Memory
009FFFH
002080H
Internal EPROM (32 Kbytes)
00207FH
002000H
(Determined by EA# Pin) Reserved Memory (Internal EPROM or External
Memory)
001FFFH
001FE0H
Memory Mapped Special Function Registers (SFR's)
001FDFH
001F00H
Internal Special Function Registers (SFR's)
001EFFH
001E00H
Internal CAN Peripheral Memory
001DFFH
000500H
External Memory
0004FFH
000400H
(Address with Indirect or Indexed Modes) Internal RAM (Code RAM)
0003FFH
000100H
Internal Register RAM – Upper Register File (Address with Indirect or Indexed
Modes or through Windows)
0000FFH
000018H
Internal Register RAM – Lower Register File (Address with Direct, Indirect, or
Indexed Modes.
000017H
000000H
CPU Special Function Registers (SFR's)
NOTES:
1. Refer to 8XC196KX Family User’s Guide for SFR Description.
2. Code executed in locations 0000H to 003FFH is forced external.
3. Reserved SFR bit locations must be written with 0.
Notes
(1)
(2)
(2)
(2,3)
ADVANCE INFORMATION Datasheet
9
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