參數(shù)資料
型號: MB90F474LPF
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 32/118頁
文件大小: 1199K
代理商: MB90F474LPF
MB90470 Series
20
s MEMORY MAP
* : In models where address 2# coincides with 004000H, there is no external area.
The image of FF bank ROM is reflected in the top of the 00 bank, for greater efficiency in using the C compiler
for small models. The lower 16-bit address on the FF bank is the same as the lower 16-bit address on the 00
bank, so that it is possible to reference tables in ROM without using the pointer for a far specification.
For example, when accessing 00C000H, it is actually the content of ROM at FFC000H that is accessed. Here,
because the ROM area on the FF bank exceeds 48 KB, it is not possible to view the entire area in the image on
the 00 bank. Therefore, the image from FF4000H to FFFFFFH is visible on the 00 bank, and FF0000H to FF3FFFH
is visible only on the FF bank.
Model
Address 1#
Address 2#
MB90473
FE0000H
002900H
MB90474
FC0000H
004000H
MB90477/478
FC0000H
002100H
MB90F474
FC0000H
004000H
MB90V470
(FC0000H)
004000H
FFFFFFH
Address 1#
Address 2#
010000H
004000H
000100H
0000D0H
000000H
: Internal
: External
: Access not available
RAM
Single chip
Internal ROM external bus
ROM area
FF bank image
ROM area
FF bank image
External ROM external bus
Peripheral
RAM
Register
*
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