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M30245 Datasheet(PDF) 28 Page - Renesas Technology Corp |
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M30245 Datasheet(HTML) 28 Page - Renesas Technology Corp |
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28 / 266 page ![]() M30245 Group Processor Mode Rev.2.00 Oct 16, 2006 page 28 of 264 REJ03B0005-0200 Figure 1.11. Memory map of each processor mode Figure 1.12. Memory maps and chip-select areas Bus Settings The BYTE pin and bit 6 of the processor mode register 0 (address 000416) are used to change the bus settings. Table 1.14 shows the factors used to change the bus settings. Table 1.14. Switching bus settings Single-chip mode SFR area Internal RAM area Inhibited Internal ROM area Microprocessor mode SFR area Internal RAM area External area Internally reserved area 0000016 0040016 XXXXX16 YYYYY16 FFFFF16 D000016 External area : Accessing this area allows the user to access a device connected externally to the microcomputer. 0400016 Memory expansion mode SFR area Internal RAM area External area Internal ROM area Internally reserved area Internally reserved area M30245FCGP 02BFF16 E000016 M30245MC-XXXGP 02BFF16 E000016 M30245M8-XXXGP F000016 017FF 16 Address XXXXX16 Type No. Address YYYYY16 Microprocessor mode SFR area Internal RAM area External area Internal area reserved 0000016 0040016 XXXXX16 YYYYY16 FFFFF16 D000016 Note 1: The memory maps in single-chip mode are omitted. 0800016 Memory expansion mode SFR area Internal RAM area External area Internal ROM area Internal area reserved Internal area reserved CS3 (16Kbytes) CS2 (128Kbytes) CS1 (32Kbytes) CS0 Memory expansion mode: 640K bytes Microprocessor mode: 832K bytes 2800016 3000016 0400016 M30245FCGP 02BFF16 E000016 M30245MC-XXXGP 02BFF16 E000016 M30245M8-XXXGP F000016 017FF 16 Address XXXXX16 Type No. Address YYYYY16 Bus setting Swit ching f actor Switching external address bus width b6 of processor mode register 0 Switching external data bus width BYTE pin |
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