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M16C/26 датащи(PDF) 218 Page - Renesas Technology Corp |
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M16C/26 датащи(HTML) 218 Page - Renesas Technology Corp |
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218 / 239 page ![]() Renesas Technology Corp. Appendix Standard Serial I/O Mode 1 (Flash Memory Version) 212 M16C/26 Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Under development Preliminary Specifications Rev. 0.9 Specifications in this manual are tentative and subject to change. Download 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. Figure 1.22.8. Timing for download FA16 Program data Program data Data size (high) Data size (low) Check sum CLK1 RxD1 TxD1 RTS1(BUSY) (M16C reception data) (M16C transmit data) CLK1 RxD1 TxD1 RTS1(BUSY) A716 D016 (M16C reception data) (M16C transmit data) Figure 1.22.7. Timing for erasing all code blocks. |
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