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參數(shù)資料
| 型號(hào)： | M37480MXT |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機(jī) |
| 文件頁數(shù)： | 10/97頁 |
| 文件大小： | 1076K |
| 代理商： | M37480MXT |
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MITSUBISHI MICROCOMPUTERS
7480/7481 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
10
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
CPU Mode Register
The stack page selection bit is assigned to the CPU mode regis-
ter. This register is allocated at address 00FB
16
.
Fig. 7 Structure of CPU mode register
FUNCTIONAL DESCRIPTION
Central Processing Unit (CPU)
The 7480/7481 group uses the standard 740 family CPU. Refer to
the table of 740 family addressing modes and machine instruc-
tions or the MELPS 740 programming manual for details on the
instruction set.
Machine-resident 740 family instructions are as follows:
1. The FST and SLW instructions are not available.
2. The MUL and DIV instructions are available.
3. The WIT instruction is available. (Note)
4. The STP instruction is available. (Note)
Note:
When using these instructions, refer to the corresponding
chapter “STP and WIT instruction control” below.
CPU mode register (CPUM: address 00FB
16
)
b7
b0
Stack page selection bit (Note)
0
:
Page 0
1
:
Page 1
System clock division proportion selection bit
0
:
f
= f(X
IN
)/2 (high-speed mode)
1
:
f
= f(X
IN
)/8 (medium-speed mode)
Not used.
These bits must always be set to “0”.
Watchdog timer L count source selection bit
0
:
f(X
IN
)/8
1
:
f(X
IN
)/16
Note
: In the models of RAM size under 192 bytes, set this bit to “0”.
Not used (undefined at read)
Not used (undefined at read)
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| M37481E8 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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| M37481M8T-154SP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37481E8 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481E8FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481E8SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481E8SS | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 16KB EPROM 5V 42PIN SDIP - Bulk |
| M37481E8T | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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