參數(shù)資料
型號: μPD789166Y
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位單片機微控制器(8位單片微控制器)
文件頁數(shù): 19/145頁
文件大?。?/td> 610K
代理商: ΜPD789166Y
Preliminary Product Information
18
μ
PD789166Y, 789167Y, 789176Y, 789177Y
4.2
Data Memory Addressing
Each of the
μ
PD789166Y,
μ
PD789167Y,
μ
PD789176Y, and
μ
PD789177Y is provided with a wide range of
addressing modes to make memory manipulation as efficient as possible. A data memory area (FD00H to FFFFH)
can be accessed using a unique addressing mode according to its use, such as a special function register (SFR).
Figure 4-2 illustrates the data memory addressing modes.
Figure 4-2. Data Memory Addressing Modes
Special function register (SFR)
256
×
8 bits
Internal high-speed RAM
512
×
8 bits
Internal ROM
Note
Direct addressing
Register indirect addressing
Based addressing
SFR addressing
Short direct addressing
Unusable
F F F F H
F F 2 0 H
F F 1 F H
F F 0 0 H
F E F F H
F E 2 0 H
F E 1 F H
F D 0 0 H
F C F F H
n n n n H
0 0 0 0 H
n n n n H + 1
Note
The size of internal ROM varies depending on the model (see the following table).
Product name
Last address of internal ROM
nnnnH
μ
PD789166Y and
μ
PD789176Y
3FFFH
μ
PD789167Y and
μ
PD789177Y
5FFFH
相關PDF資料
PDF描述
μPD789176Y 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
μPD789177Y 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
μPD789187 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
μPD789197 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
μPD789186 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
相關代理商/技術參數(shù)
參數(shù)描述
PD78F0134 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134(A) 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134(A1) 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134A 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers
PD78F0134A1 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers