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M16C/26 датащи(PDF) 191 Page - Renesas Technology Corp |
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M16C/26 датащи(HTML) 191 Page - Renesas Technology Corp |
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191 / 239 page ![]() Renesas Technology Corp. Flash Memory 185 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. Flash Memory The M16C/26 (flash memory version) contains the flash memory that can be rewritten with a single voltage. For this flash memory, three flash memory modes are available in which to read, program, and erase: parallel I/O and standard serial I/O modes in which the flash memory can be manipulated using a program- mer and a CPU rewrite mode in which the flash memory can be manipulated by the Central Processing Unit (CPU). Each mode is detailed in the following sections. The flash memory is divided into several blocks as shown in Figure 1.19.1, so that memory can be erased one block at a time. Figure 1.19.1. Block diagram of flash memory (64-Kbyte) version (Note 1) Note 1: To specify a block, use the maximum address in the block that is an even address. Note 2: To access 2Kbyte data blocks, set PM10 to "1". 0F000016 Block B :2K bytes (Note 2) 0FFFFF16 Block 2 : 16K bytes Block 3 : 32K bytes User ROM area Block 1 : 8K bytes Block 0 : 8K bytes 0FBFFF16 0FC00016 0F7FFF16 0F800016 0FDFFF16 0FE00016 00F00016 00FFFF16 Block A :2K bytes (Note 2) |
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