參數(shù)資料
型號(hào): μPD789014
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(yè)數(shù): 21/125頁(yè)
文件大?。?/td> 366K
代理商: ΜPD789014
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CHAPTER 1 MEMORY SPACE
4
1.4 CALLT INSTRUCTION TABLE AREA
The 64-byte area 0040H to 007FH can store the subroutine entry address of a 1-byte call instruction (CALLT).
1.5 INTERNAL DATA MEMORY SPACE
The 78K/0S series products incorporate the following data memory:
(1)
Internal high-speed RAM
The 78K/0S series products incorporate internal high-speed RAM in the address space shown in Table 1-7.
The internal high-speed RAM is also used as a stack.
LCD display RAM (
μ
PD789407 and
μ
PD789417 subseries)
An LCD display RAM is allocated in the area between FA00H and FA1BH. The LCD display RAM can also
be used as ordinary RAM.
EEPROM
TM
(
μ
PD789806Y subseries)
An electrically erasable PROM (EEPROM) is allocated in the area between F800H and F9FFH. Unlike
ordinary RAM, an EEPROM retains the data it contains even when the power is turned off. Also, unlike an
EPROM, the contents of an EEPROM can be erased electrically, without the need to expose the chip to
ultraviolet light.
(2)
(3)
Table 1-7. Internal Data Memory Spaces of 78K/0S Subseries Products
Subseries name
Product name
High-speed RAM
LCD display RAM
EEPROM
μ
PD789014
μ
PD789011
FE80H-FEFFH
subseries
μ
PD789012
(128 bytes)
μ
PD78P9014
FE00H-FEFFH
(256 bytes)
μ
PD789026
μ
PD789022
FE00H-FEFFH
subseries
μ
PD789024
(256 bytes)
μ
PD789025
FD00H-FEFFH
μ
PD789026
(512 bytes)
μ
PD78F9026
μ
PD789407
μ
PD789405
FD00H-FEFFH
FA00H-FA1BH
subseries
μ
PD789406
(512 bytes)
(28 bytes)
μ
PD789407
μ
PD789417
μ
PD789415
FD00H-FEFFH
FA00H-FA1BH
subseries
μ
PD789416
(512 bytes)
(28 bytes)
μ
PD789417
μ
PD78F9418
μ
PD789800
μ
PD789800
FE00H-FEFFH
subseries
μ
PD78F9801
(256 bytes)
μ
PD789806Y
μ
PD789806Y
FE00H-FEFFH
F800H-F9FFH
subseries
μ
PD78F9806Y
(256 bytes)
(512 bytes)
相關(guān)PDF資料
PDF描述
μPD789418 8 Bit Single Chip Microcontrollers(8位單片微控制器)
μPD789801 8 Bit Single Chip Microcontrollers(8位單片微控制器)
μPD789806Y 8 Bit Single Chip Microcontrollers(8位單片微控制器)
μPD789F806Y 8 Bit Single Chip Microcontrollers(8位單片微控制器)
μPD784036Y 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器)
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