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SH7713 Datasheet(PDF) 139 Page - Renesas Technology Corp

Part # SH7713
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
PDF  904 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7713 Datasheet(HTML) 139 Page - Renesas Technology Corp

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Section 3 DSP Operating Unit
Rev.1.50 Aug. 30, 2006 Page 99 of 860
REJ09B0288-0150
3.4.2
DSP Data Addressing
Table 3.10 shows the relationship between the double data transfer instructions and single data
transfer instructions.
Table 3.10
Overview of Data Transfer Instructions
Double Data Transfer Instructions Single Data Transfer Instructions
MOVX.W
MOVY.W
MOVS.W
MOVS.L
Address register
Ax: R4, R5,
Ay: R6, R7
As: R2, R3, R4, R5
Index register
Ix: R8, Iy: R9
Is: R8
Addressing
Nop/Inc (+2)/index addition:
post-increment
Nop/Inc (+2, +4)/index addition:
post-increment
Addressing
—
Dec (–2, –4): pre-decrement
Modulo addressing
Possible
Not possible
Data bus
XDB, YDB
LDB
Data length
16 bits (word)
16/32 bits (word/longword)
Bus conflict
No
Yes
Memory
X/Y data memory
Entire memory space
Source register
Dx, Dy: A0, A1
Ds: A0/A1, M0/M1, X0/X1, Y0/Y1,
A0G, A1G
Destination register
Dx: X0/X1
Dy: Y0/Y1
Ds: A0/A1, M0/M1, X0/X1, Y0/Y1,
A0G, A1G
Addressing Mode for Double Data Transfer Instructions: The double data transfer instructions
supports the following three addressing modes.
• Non-update address register addressing
The Ax and Ay registers are address pointers. They are not updated.
• Increment address register addressing
The Ax and Ay registers are address pointers. After a data transfer, they are each incremented
by 2 (post- increment).
• Addition index register addressing
The Ax and Ay registers are address pointers. After a data transfer, the value of the Ix or Iy
register is added to each (post-increment). The double data transfer instructions do not supports



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