參數(shù)資料
型號(hào)： MB89F051PMC
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQFP64
封裝： 12 X 12 MM, 1.70 MM HEIGHT, 0.65 MM PITCH, PLASTIC, LQFP-64
文件頁(yè)數(shù)： 7/40頁(yè)
文件大?。?/td> 931K
代理商： MB89F051PMC
MB89051 Series
DS07-12551-3E
15
■ CPU CORE
1.
Memory Size
The MB89051 microcontroller offers a memory space of 64 Kbytes consisting of the I/O, RAM and ROM areas.
The memory space contains areas that are used for specific purposes, such as a general-purpose register and
a vector table.
I/O area (addresses: 0000H through 007FH)
This area is assigned with the control and data registers, for example, of peripheral functions to be built in.
The I/O area is as accessible as the memory since the area is assigned to a part of the memory space.Direct
addressing also allows the area to be accessed faster.
RAM area
As an internal data area, a static RAM is built in.
The internal RAM capacity varies with the product type.
The area 80H to FFH can be accessed at high speed with direct addressing.
The area 100H to 1FFH can be used a general-purpose register area. (The usable area is limited depending
on the product.)
When reset, RAM data becomes undefined.
ROM area
As an internal program area, a ROM is built in.
The internal RAM capacity varies with the product type.
The area FFC0H to FFFFH should be used for a vector table, for example.
Memory map
MB89051
0000H
0080H
0100H
0200H
0880H
8000H
FFC0H
FFFFH
ROM
I/O
RAM
MB89F051
0000H
0080H
0100H
0200H
0880H
8000H
FFC0H
FFFFH
ROM
I/O
RAM
Register
Access
prohibited
Vector table
(reset, interrupt and vector call instructions)
* : FLASH ROM
Register
Access
prohibited
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