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參數(shù)資料
| 型號： | M37733MHBXXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 60/89頁 |
| 文件大?。?/td> | 1506K |
| 代理商： | M37733MHBXXXFP |
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63
MITSUBISHI MICROCOMPUTERS
M37733MHBXXXFP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
PRELIMINARY
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
ROM AREA MODIFICATION FUNCTION
The internal ROM size and RAM size of the M37733MHBXXXFP can
be modified by the memory allocation control register’s bits 0,1 and 2
shown in Figure 70.
Figure 72 shows the memory allocation in which the internal ROM
size and RAM size are modified.
Make sure to write data in the memory allocation control register as
the flow shown in Figure 71.
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 128 Kbytes (addresses 00000016 –
01FFFF16). It is regardless of the selected ROM size (refer to MASK
ROM ORDER CONFIRMATION FORM.) Therefore, program “FF16”
to the addresses out of the selected ROM area in the EPROM which
you tender when ordering a mask ROM.
Address 01FFFF16 of this microcomputer corresponds to the lowest
address of the EPROM which you tender.
76543210
00
ML2
ML1
ML0
Memory allocation control register
Memory allocation selection bits
ROM size
RAM size
0 0 0 : 124 Kbytes
3968 bytes
0 0 1 : 120 Kbytes
3968 bytes
0 1 0 : 60 Kbytes
2048 bytes
1 0 0 : 32 Kbytes
2048 bytes
1 0 1 : 16 Kbytes
2048 bytes
1 1 0 : 96 Kbytes
3968 bytes
0 0 : Always “00” (However, writing data “5516”
shown in Figure 71 is possible.)
Address
6316
Note. Write to the memory allocation control register as the flow shown in Figure 71.
Fig. 71 How to write data in memory allocation control register
Fig. 70 Bit configuration of memory allocation control register
Writing data “5516” (LDM instruction)
Writing data “0Y16” (LDM instruction)
ML2, ML1, ML0 selection bits
Next instruction
How to write in memory allocation control register
Note. “Y” is the sum of bits to be set. For example, when setting bit 1 to “1”, “Y” becomes “2”.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37733MHL | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37733MHLXXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37733S4 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16-BIT CMOS MICROCOMPUTER |
| M37733S4BFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER |
| M37733S4LHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER |
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