參數(shù)資料
型號: μPD789186
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 16/146頁
文件大?。?/td> 630K
代理商: ΜPD789186
Preliminary Product Information
16
μ
PD789186, 789187, 789196, 789197
4. CPU ARCHITECTURE
4.1
Memory Space
The
μ
PD789186,
μ
PD789187,
μ
PD789196, and
μ
PD789197 can each access up to 64 Kbytes of memory space.
Figure 4-1 shows the memory map.
Figure 4-1. Memory Map
Special function register
256
×
8 bits
Built-in high-speed RAM
512
×
8 bits
EEPROM
128
×
8 bits
Program memory
space
Data memory space
Program area
Program area
CALLT table area
Unusable
Vector table area
Built-in ROM
Note
Unusable
F F F F H
F F 0 0 H
F E F F H
F D 0 0 H
F C F F H
n n n n H
0 0 8 0 H
0 0 7 F H
0 0 4 0 H
0 0 3 F H
0 0 2 8 H
0 0 2 7 H
0 0 0 0 H
F 8 8 0 H
F 8 7 F H
0 0 0 0 H
F 8 0 0 H
F 7 F F H
n n n n H
n n n n H + 1
Note
The size of the built-in ROM varies depending on the model. (See the following table.)
Product name
Last address of built-in ROM
nnnnH
μ
PD789186 and
μ
PD789196
3FFFH
μ
PD789187 and
μ
PD789197
5FFFH
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