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参数资料
| 型号： | M37481M8-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | 10 X 10 MM, 0.80 MM PITCH, PLASTIC, QFP-44 |
| 文件页数： | 6/100页 |
| 文件大小： | 1457K |
| 代理商： | M37481M8-XXXFP |
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MITSUBISHI MICROCOMPUTERS
7480/7481 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
10
PRELIMINAR
Y
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 00FB16.
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 00FB16)
b7
b0
Stack page selection bit (Note)
0
:
Page 0
1
:
Page 1
System clock division proportion selection bit
0
:
f = f(XIN)/2 (high-speed mode)
1
:
f = f(XIN)/8 (medium-speed mode)
Not used.
These bits must always be set to “0”.
Watchdog timer L count source selection bit
0
:
f(XIN)/8
1
:
f(XIN)/16
Note : In the models of RAM size under 192 bytes, set this bit to “0”.
Not used (undefined at read)
相关PDF资料 |
PDF描述 |
|---|---|
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| MB96F356RWAPMC1-GSE2 | 16-BIT, FLASH, 56 MHz, MICROCONTROLLER, PQFP64 |
| MB95F204KP-G-SH-SNE2 | 8-BIT, FLASH, 16.25 MHz, MICROCONTROLLER, PDIP24 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M37481M8-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES |
| M37481MT-088FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481MXT | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481MXT-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481MXT-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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