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7721 датащи(PDF) 73 Page - Renesas Technology Corp

номер детали 7721
подробное описание детали  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  577 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
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7721 датащи(HTML) 73 Page - Renesas Technology Corp

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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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