m37753ffchp Mitsumi Electronics, Corp., m37753ffchp Datasheet - Page 12

• Manufacturer Part Number: m37753ffchp
• Description: Single Chip 16 Bit Cmos Microcomputer Flash Memory Version
• Manufacturer: Mitsumi Electronics, Corp.

MEMORY AREA MODIFICATION FUNCTION
For the M37753FFCFP and the M37753FFCHP, 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.
Fig. 4 Memory allocation (Internal memory area modification by memory allocation select bits)
12
00 0000
00 0080
00 087F
00 4000
00 FFFF
FF FFFF
00 0000
00 0080
00 0FFF
00 1000
01 EFFF
01 FFFF
FF FFFF
ML
ML
ML
16
16
16
16
16
16
16
16
16
16
16
16
16
(ML
Flash memory size : 120 Kbytes
RAM size : 3968 bytes
0
1
2
(ML
Flash memory size : 48 Kbytes
RAM size : 2048 bytes
: Memory allocation select bit 0
: Memory allocation select bit 1
: Memory allocation select bit 2
Internal RAM 3968 bytes
Internal RAM 2048 bytes
External memory area
External memory area
External memory area
Internal flash memory
Internal flash memory
2
2
, ML
, ML
(Reserved area)
120 Kbytes
1
48 Kbytes
1
, ML
, ML
SFR
SFR
0
0
) = (0, 0, 0)
) = (1, 0, 0)
00 0000
00 0080
00 0FFF
00 8000
01 EFFF
01 FFFF
FF FFFF
00 0000
00 0080
00 087F
00 8000
00 FFFF
FF FFFF
16
16
16
16
16
16
16
16
16
16
16
16
16
(ML
Flash memory size : 92 Kbytes
RAM size : 3968 bytes
(ML
Flash memory size : 32 Kbytes
RAM size : 2048 bytes
Note: The internal flash memory area becomes the external memory area in the microprocessor mode.
Internal RAM 3968 bytes
Internal RAM 2048 bytes
External memory area
External memory area
External memory area
Internal flash memory
Internal flash memory
External memory area
2
2
, ML
, ML
(Reserved area)
SHINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
1
92 Kbytes
32 Kbytes
1
, ML
, ML
SFR
SFR
0
0
) = (0, 0, 1)
) = (1, 0, 1)
00 0000
00 0080
00 0C7F
00 1000
00 FFFF
FF FFFF
00 0000
00 0080
00 087F
00 1000
00 FFFF
FF FFFF
16
16
16
16
16
16
16
16
16
16
16
16
(ML
Flash memory size : 60 Kbytes
RAM size : 3072 bytes
(ML
Flash memory size : 60 Kbytes
RAM size : 2048 bytes
Internal RAM 3072 bytes
Internal RAM 2048 bytes
External memory area
External memory area
External memory area
Internal flash memory
Internal flash memory
2
2
, ML
, ML
60 Kbytes
60 Kbytes
1
1
, ML
, ML
SFR
SFR
0
0
) = (0, 1, 0)
) = (1, 1, 0)
MITSUBISHI MICROCOMPUTERS
00 0000
00 0080
00 0C7F
00 2000
00 FFFF
FF FFFF
00 0000
00 0080
00 087F
00 2000
00 FFFF
FF FFFF
16
16
16
16
16
16
16
16
16
16
16
16
(ML
Flash memory size : 56 Kbytes
RAM size : 3072 bytes
(ML
Flash memory size : 56 Kbytes
RAM size : 2048 bytes
Internal RAM 3072 bytes
Internal RAM 2048 bytes
M37753FFCHP
Internal flash memory
External memory area
External memory area
Internal flash memory
M37753FFCFP
2
2
, ML
, ML
56 Kbytes
56 Kbytes
1
1
, ML
, ML
SFR
SFR
0
0
) = (0, 1, 1)
) = (1, 1, 1)