M37754FFCGP Datasheet, PDF (13/68 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION

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MITSUBISHI MICROCOMPUTERS
M37754FFCGP
M37754FFCHP
SHINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
MEMORY AREA MODIFICATION FUNCTION
For the M37754FFCGP and the M37754FFCHP, the internal
memory’s size and address area can be changed by setting bits 2, 3,
4 (memory allocation select bits) of the particular function select reg-
ister 0 (see figure 5). Figure 4 shows the memory map when chang-
ing the internal memory area.
ML0 : Memory allocation select bit 0
ML1 : Memory allocation select bit 1
ML2 : Memory allocation select bit 2
Note: The internal flash memory area becomes the external memory area in the microprocessor mode.
(ML2, ML1, ML0) = (0, 0, 0)
(ML2, ML1, ML0) = (0, 0, 1)
(ML2, ML1, ML0) = (0, 1, 0)
(ML2, ML1, ML0) = (0, 1, 1)
Flash memory size : 120 Kbytes
Flash memory size : 92 Kbytes
Flash memory size : 60 Kbytes
Flash memory size : 56 Kbytes
RAM size : 3968 bytes
RAM size : 3968 bytes
RAM size : 3072 bytes
RAM size : 3072 bytes
00 000016
00 008016
00 0FFF16
,,, ,,,,,, 00100016
SFR
Internal RAM 3968 bytes
00 000016
00 008016
00 0FFF16
SFR
Internal RAM 3968 bytes
00 000016
00 008016
00 0C7F16
00 100016
SFR
Internal RAM 3072 bytes
00 000016
00 008016
SFR
00 0C7F16 ^{Internal RAM 3072 bytes}
External memory area
00 200016
,,, ,,, ^00800016
Internal flash memory
60 Kbytes
Internal flash memory
56 Kbytes
Internal flash memory
,,,,,, ^{120 Kbytes}
Internal flash memory
92 Kbytes
00 FFFF16
00 FFFF16
,,,,,, _{01 EFFF16}
01 FFFF16
(Reserved area)
01 EFFF16
01 FFFF16
(Reserved area)
,,,,, ,,,,,, _{Externalmemoryarea}
,,,,, ,,,,,, ^FFFFFF16
External memory area
FF FFFF16
External memory area
External memory area
FF FFFF16
FF FFFF16
(ML2, ML1, ML0) = (1, 0, 0)
(ML2, ML1, ML0) = (1, 0, 1)
(ML2, ML1, ML0) = (1, 1, 0)
(ML2, ML1, ML0) = (1, 1, 1)
Flash memory size : 48 Kbytes
RAM size : 2048 bytes
Flash memory size : 32 Kbytes
RAM size : 2048 bytes
Flash memory size : 60 Kbytes
RAM size : 2048 bytes
Flash memory size : 56 Kbytes
RAM size : 2048 bytes
00 000016
00 008016
00 087F16
SFR
Internal RAM 2048 bytes
00 000016
00 008016
00 087F16
SFR
Internal RAM 2048 bytes
00 000016
00 008016
00 087F16
SFR
Internal RAM 2048 bytes
00 000016
00 008016
00 087F16
SFR
Internal RAM 2048 bytes
00 400016
External memory area
External memory area
00 100016
00 200016
,,,,, ,,,,,, _{Internalflashmemory}
48 Kbytes
,,, _{00 FFFF16}
00 800016
Internal flash memory
32 Kbytes
00 FFFF16
Internal flash memory
60 Kbytes
Internal flash memory
56 Kbytes
00 FFFF16
00 FFFF16
,,,,,,,,,, ,,,,,,,,,,,, ^{Externalmemoryarea}
External memory area
External memory area
External memory area
,,,,,,,,,, ,,,,,,,,,,,, ^FFFFFF16
FF FFFF16
FF FFFF16
FF FFFF16
Fig. 4 Memory allocation (Internal memory area modification by memory allocation select bits)
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