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参数资料
| 型号： | MB90497GPFM |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP64 |
| 封装： | PLASTIC, LQFP-64 |
| 文件页数： | 10/90页 |
| 文件大小： | 849K |
| 代理商： | MB90497GPFM |
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MB90495G Series
18
s
s MEMORY MAP
The memory access modes of the MB90495G Series can be set to single chip mode, internal ROM - external
bus mode, and external ROM - external bus mode.
1.
Memory Allocation of the MB90495G
The MB90495G Series has 24-bit internal address bus and 24-bit external address bus output, enabling it to
access up to 16 Mbytes of external access memory. The enable/disable time of the ROM mirror function is shown
graphically in the memory map.
2.
Memory Map
Note : When the internal ROM is operational, the ROM data in the upper address of bank 00 of the F2MC-16LX is
visible in an image. This is called the ROM mirror function, and takes advantage of the small C compiler model.
With the F2MC-16LX, the lower 16-bit address of bank FF and the lower 16-bit address of bank 00 are set
identical to one another. This allows the ROM-internal table to be referenced without specifying a far pointer.
For example, say the address “00C000H” is accessed. In actuality, the “FFC000H ” address inside ROM will
be accessed. However, as the ROM space in bank FF exceeds 48 Kbytes, the entire space cannot be viewed
on bank 00’s image. And so, since “FF4000H” to “FFFFFFH” ROM data will be visible on the “004000H” to
“00FFFFH” image, save the ROM data table in the “FF4000H” to “FFFFFFH” space.
Address #3
000000H
0000C0H
000100H
003800H
010000H
FFFFFFH
Single chip mode
(ROM mirror function available)
Periphery
RAM space
Register
RAM space
Register
RAM space
Register
Extention
IO space
Extention
IO space
Extention
IO space
ROM space
(image of
bank FF)
ROM space
(image of
bank FF)
ROM space
Internal ROM
External bus mode
External ROM
External bus mode
Address #1
Address #2
Internal access memory
External access memory
Access prohibited
001100H
* : Addresses #1 and #3 are product-specific.
Product
Address #1*
Address #2
Address #3*
MB90V495G
001900H
004000H
(FC0000H)
MB90F497G
000900H
004000H
FF0000H
MB90497G
000900H
004000H
FF0000H
MB90F498G
000900H
004000H
FE0000H
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PDF描述 |
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| MB90497GPMC | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP64 |
| MB90F574/APFF | 16-BIT, FLASH, MICROCONTROLLER, PQFP120 |
| MB90F997MBSPMC | 16-BIT, FLASH, 32 MHz, MICROCONTROLLER, PQFP48 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MB90497GPMC | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90520A | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90520B | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90522 | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
| MB90522A | 制造商:FUJITSU 制造商全称:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller |
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