參數(shù)資料
型號： M30100M2-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP32
封裝： 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件頁數(shù)： 62/166頁
文件大?。?/td> 2060K
代理商： M30100M2-XXXFP
Appendix Standard Serial I/O Mode (Flash Memory Version)
Under
development
Tentative Specifications REV.E1
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
151
Standard serial I/O mode
The standard serial I/O mode inputs and outputs the control functions, addresses and data needed to
operate (read, program, erase, etc.) the internal flash memory. This I/O is serial. There are actually two
standard serial I/O modes: mode 1, which is clock synchronized, and mode 2, which is asynchronized. Both
modes require a dedicated external device (writer).
In the standard serial I/O mode, the CPU controls rewrite to the flash memory and communication with the
dedicated external device (writer). This mode starts when the reset is released, which is done when the
CNVss pin is "H" level. (In the ordinary microprocessor mode, set CNVss pin to "L" level.)
This control program for communications with the dedicated external device (writer) is written in the boot
ROM area when the product is shipped from Mitsubishi. Accordingly, make note of the fact that the boot
ROM area cannot be erased nor rewritten. Figures 1.20.2 and 1.20.3 show the pin connections for the
standard serial I/O mode. The communications with the dedicated external device (writer) uses UART0.
Standard serial I/O switches between mode 1 (clock synchronized) and mode 2 (clock asynchronized)
according to the level of CLK0 pin when the reset is released.
To use standard serial I/O mode 1 (clock synchronized), set the CLK0 pin to "H" level and release the reset.
The operation uses the four UART0 pins CLK0, RxD0, TxD0 and BUSY.
To use standard serial I/O mode 2 (clock asynchronized), set the CLK0 pin to "L" level and release the
reset. The operation uses the two UART0 pins RxD0 and TxD0. The BUSY pin should be open.
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