- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄366254 > 68HC05M68HC (Motorola, Inc.) HCMOS Microcontroller Unit PDF資料下載
參數(shù)資料
| 型號： | 68HC05M68HC |
| 廠商： | Motorola, Inc. |
| 英文描述： | HCMOS Microcontroller Unit |
| 中文描述： | HCMOS微控制器 |
| 文件頁數(shù)： | 87/130頁 |
| 文件大?。?/td> | 1541K |
| 代理商： | 68HC05M68HC |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁當前第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁
EPROM
Programming from an External Memory Device
MC68HC705P6A
—
Rev. 2.0
Advance Information
MOTOROLA
EPROM
87
10.8 Programming from an External Memory Device
In this programming mode, PC5 must be connected to V
SS
. PC4 and
PC3 are used to select the programming mode. The programming circuit
shown in
Figure 10-2
uses an external 12-bit counter to address the
memory device containing the code to be copied. This counter requires
a clock and a reset function. The 12-bit counter can address up to
4 Kbytes of memory, which means that a port pin has to be used to
address the remaining 4 K of the 8-K memory space.
The following procedure explains how to use the programming circuit
shown in
Figure 10-2
to copy a user program from an external memory
device into the MCU
’
s EPROM:
1.
Program a 2764-type EPROM device with the desired instructions
and data. Code programmed into the 2764 must appear at the
same addresses desired in the MC68HC705P6A. Therefore, the
page zero code must start at $0020 and end at $004F, the main
body of code must start at $0100 and end at $12FF, and the user
vectors must start at $1FF0 and end at $1FFF.
NOTE:
The MOR data must appear at $1EFF and $1F00.
2.
Install the programmed 2764 device into the programming circuit.
3.
Install the MC68HC705P6A to be programmed into the
programming circuit.
4.
Set the PROGRAM and/or VERIFY switches for the desired
operation (an open switch is the active state) and close the
RESET switch to hold the MCU in reset.
5.
Make sure that the V
PP
source is OFF.
Apply the V
DD
source to the programming circuit.
Apply the V
PP
source to the programming circuit.
Open the RESET switch to allow the MCU to come out of reset
and begin execution of the software in its internal bootloader
ROM.
6.
7.
8.
相關PDF資料 |
PDF描述 |
|---|---|
| 68HC070KH12 | 8 BIT MICROCONTROLLER UNITS |
| 68HC08KH12 | 8 BIT MICROCONTROLLER UNITS |
| 68HC08M68HC | HCMOS Microcontroller Unit |
| 68HC11 | Technical Data |
| 68HC12 | Advance Information |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 68HC05P4A | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:SPECIFICATION (General Release) |
| 68HC05P4A_1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:SPECIFICATION (General Release) |
| 68HC05P5 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:SPECIFICATION(General Release) |
| 68HC05P9A | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:SPECIFICATION(General Release) |
| 68HC05P9A_1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:SPECIFICATION(General Release) |
發(fā)布緊急采購，3分鐘左右您將得到回復。