参数资料
型号: M38514E6-XXXFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO42
封装: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件页数: 68/93页
文件大小: 1137K
代理商: M38514E6-XXXFP
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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