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UPD75P0076 Datasheet(PDF) 20 Page - NEC |
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UPD75P0076 Datasheet(HTML) 20 Page - NEC |
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20 / 62 page  µPD75P0076 20 (3) Description of symbols used in addressing area Remarks 1. MB indicates access-enabled memory banks. 2. In area *2, MB = 0 for both MBE and MBS. 3. In areas *4 and *5, MB = 15 for both MBE and MBS. 4. Areas *6 to *11 indicate corresponding address-enabled areas. MB = 0 (000H to 07FH) MB = 15 (F80H to FFFH) MB = MBS MBS = 0, 1, 15 MB = MBE • MBS MBS = 0, 1, 15 *1 MB = 0 *2 MBE = 1 : MBE = 0 : *3 MB = 15, fmem = FB0H to FBFH, FF0H to FFFH MB = 15, pmem = FC0H to FFFH addr = 0000H to 3FFFH *4 *5 *6 addr, addr1 = *7 (Current PC) –15 to (Current PC) –1 (Current PC) +2 to (Current PC) +16 *8 caddr = 0000H to 0FFFH (PC13, 12 = 00B) or 1000H to 1FFFH (PC13, 12 = 01B) or 2000H to 2FFFH (PC13, 12 = 10B) or 3000H to 3FFFH (PC13, 12 = 11B) faddr = 0000H to 07FFH taddr = 0020H to 007FH addr1 = 0000H to 3FFFH (Mk II mode only) *9 *10 *11 Program memory addressing Data memory addressing |
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