Renesas SH7641 - Manual (Page 137)

Section 2 CPU
Rev. 4.00 Sep. 14, 2005 Page 87 of 982
REJ09B0023-0400
The correspondence between DSP data transfer operands and registers is shown in table 2.28.
CPU core registers are used as a pointer address that indicates a memory address.
Table 2.28 Correspondence between DSP Data Transfer Operands and Registers
Register Ax Ix Dx Ay Iy Dy Da As Ds
R0          CPU
registers R1
        
R2 (As2)        Yes 
R3 (As3)        Yes 
R4 (Ax0) Yes     —  Yes 
R5 (Ax1) Yes     —  Yes 
R6 (Ay0)    Yes     
R7 (Ay1)    Yes     
R8 (Ix)  Yes       
R9 (Iy)  —   Yes    
A0 —      Yes  Yes DSP
registers A1 —
     Yes  Yes
M0   — —     Yes
M1   — —     Yes
X0   Yes      Yes
X1   Yes      Yes
Y0      Yes   Yes
Y1      Yes   Yes
A0G         Yes
A1G         Yes