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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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SZF2002 数据表(PDF) 13 Page - NXP Semiconductors |
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SZF2002 数据表(HTML) 13 Page - NXP Semiconductors |
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13 / 76 page  1998 Aug 26 13 Philips Semiconductors Product specification Low voltage 8-bit microcontroller with 6-kbyte embedded RAM SZF2002 9.5 Paging logic The SZF2002 contains paging logic to handle the extended address range. Table 3 Paging of external memory; notes 1 and 2 Notes 1. During Debug A<17-15> are used to output the bank register. The TRUE_ A15 line is output at the A5 pin. 2. During Debug ROM and RAM access is done via PSEN, WR and RD. TRUE_A15 (INTERNAL) BANK SFR [2 : 0] A<17-15> PINS BANK REMARK 0 XXX 000 0 lower 32 kbytes always bank 0 1 000 000 0 bank 0 1 001 001 1 bank 1 1 010 010 2 bank 2 1 011 011 3 bank 3 1 100 100 4 bank 4 1 101 101 5 bank 5 1 110 110 6 bank 6 1 111 111 7 bank 7 Fig.5 The lower 128 bytes of internal RAM. handbook, halfpage MGD675 R7 R0 07H 0 R7 R0 0FH 08H R7 R0 17H 10H R7 R0 1FH 18H 2FH 7FH 20H 30H 4 banks of 8 registers (R0 to R7) |
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