參數(shù)資料
型號: M38514E6-XXXSP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDIP42
封裝: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件頁數(shù): 65/91頁
文件大?。?/td> 1161K
代理商: M38514E6-XXXSP
Rev.1.01
Oct 15, 2003
page 68 of 89
3851 Group (Built-in 24 KB or more ROM)
qDownload Command
This command downloads a program to the RAM for execution.
Execute the download command as explained here following.
(1) Transfer the “FA16” command code with the 1st byte.
(2) Transfer the program size with the 2nd and 3rd bytes.
(3) Transfer the check sum with the 4th byte. The check sum is
added to all data sent with the 5th byte onward.
(4) The program to execute is sent with the 5th byte onward.
When all data has been transmitted, if the check sum matches,
the downloaded program is executed. The size of the program will
vary according to the internal RAM.
Fig. 71 Timing for download
FA16
Program
data
Program
data
Data size
(low)
Check
sum
SCLK1
RxD
TxD
SRDY1(BUSY)
Data size
(high)
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