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參數(shù)資料
| 型號： | M37733M4LXXXHP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單片16位CMOS微機(jī) |
| 文件頁數(shù)： | 8/31頁 |
| 文件大?。?/td> | 469K |
| 代理商： | M37733M4LXXXHP |
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M37733M4LXXXHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
8
PRELIMINARY
Notice: This is not a final specification.
Some paramentic limits are suject to change.
ROM AREA MODIFICATION FUNCTION
The internal ROM size and its address area of the M37733M4LXXXHP
can be modified by the memory allocation control register’s bit 0 shown
in Figure 4.
Figure 6 shows the memory allocation in which the internal ROM
size and its address area are modified.
Make sure to write data in the memory allocation control register as
the flow shown in Figure 5.
This ROM area modification function is valid in memory expansion
mode and single-chip mode.
When ordering a mask ROM, Mitsubishi Electric corp. produces the
mask ROM using the data within 32 Kbytes (addresses 008000
16
–
00FFFF
16
). It is regardless of the selected ROM size (refer to MASK
ROM ORDER CONFIRMATION FORM.) Therefore, program “FF
16
”
to the addresses out of the selected ROM area in the EPROM which
you tender when ordering a mask ROM.
Address 00FFFF
16
of this microcomputer corresponds to the lowest
address of the EPROM which you tender.
7
6
5
4
3
2
1
0
ML
0
Memory allocation control register
Memory allocation selection bit
ROM size (ROM area)
0 : 32 Kbytes (addresses 008000
16
– 00FFFF
16
)
1 : 16 Kbytes (addresses 00C000
16
– 00FFFF
16
)
Address
63
16
Note.
Write to the memory allocation control register as the flow shown in Figure 5.
Fig. 4 Bit configuration of memory allocation control register
Fig. 5 How to write data in memory allocation control register
Writing data “55
16
” (LDM instruction)
Writing data “00
16
” or “01
16
” (LDM instruction)
ML
0
selection bit
Next instruction
How to write in memory allocation control register
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| M37735EHBFS | PROM VERSION OF M37735EHBXXXFP |
| M37735EHBXXXFP | PROM VERSION OF M37735EHBXXXFP |
| M37735EHL | PROM VERSION OF M37735MHLXXXHP |
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