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7721 bảng dữ liệu(PDF) 73 Page - Renesas Technology Corp |
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7721 bảng dữ liệu(HTML) 73 Page - Renesas Technology Corp |
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73 / 577 page  RESET 7721 Group User’s Manual 4–10 4.1 Hardware reset Fig. 4.1.9 State of SFR and internal RAM areas immediately after reset (6) 1FE016 1FE116 1FE216 1FE316 1FE416 1FE516 1FE616 1FE716 1FE816 1FE916 1FF016 1FF116 1FF216 1FF316 1FF416 1FF516 1FF616 1FF716 1FF816 1FF916 1FFA16 1FFB16 1FFC16 1FFD16 1FFE16 1FFF16 1FEB16 1FEC16 1FED16 1FEE16 1FEF16 1FEA16 Address Register name Source address register 2 Access characteristics b7 b0 State immediately after reset b7 b0 RW 0 00 0 0 00 0 0 00 0 ? ? RW RW 0 0 00 0 0 00 0 ? 0 00 Destination address register 2 Transfer counter register 2 DMA2 mode register L DMA2 mode register H DMA2 control register Source address register 3 Destination address register 3 Transfer counter register 3 DMA3 mode register L DMA3 mode register H DMA3 control register RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW ? ? ? ? ? ? ? ? ? ? 0 0 00 0 0 0 0 00 ?? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 00 0 0 00 0 0 0 ?? qInternal RAM area (addresses 8016 to 27F16) •At hardware reset (Except the case where Stop or Wait mode is terminated)............................................... Undefined. •At software reset.............................................................. Retains the state immediately before reset •At termination of Stop or Wait mode (Hardware reset is used to terminate it.)............... Retains the state immediately before the STP or WIT instruction is executed V V For the M37721S2BFP, the internal RAM area can be assigned to addresses 8016 to 47F16 by setting the internal RAM area select bit (bit 1 at address 5F16). (Refer to section “2.4 Memory assignment.”) |
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