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M38B71M1 Datasheet(PDF) 85 Page - Renesas Technology Corp |
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M38B71M1 Datasheet(HTML) 85 Page - Renesas Technology Corp |
85 / 110 page ![]() 84 38B7 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS q Reset command The reset command provides a means of stopping execution of the erase or program command safely. If the user inputs command code FF16 in the second cycle after inputting the erase or program command in the first cycle and again input command code FF16 in the third cycle, the erase or program command is disabled (i.e., reset), and the M38B79FF is placed in the read mode. If the reset command is executed, the contents of the memory does not change. q Device identification code command By inputting command code 9016 in the first cycle, the user can read out the device identification code. The command code is latched into the internal command latch at the rising edge of the ___ WE input. At this time, the user can read out manufacture’s code 1C16 (i.e., MITSUBISHI) by inputting 000016 to the address input pins in the second cycle; the user can read out device code D016 (i. e., 1M-bit flash memory) by inputting 000116. These command and data codes are input/output at the same tim- ing as for read. |