SH7641 Datasheet, PDF (111/1036 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

Section 2 CPU
2.4.4 DSP Instruction Formats
This LSI includes new instructions for digital signal processing. The new instructions are of the
following two kinds.
1. Memory and DSP register double and single data transfer instructions (16-bit length)
2. Parallel processing instructions processed by the DSP unit (32-bit length)
The instruction formats are shown in figure 2.15.
15
0
CPU core instructions
0000
...
1110
15
10 9
0
Double data transfer
instructions
111100
A field
15
10 9
0
Single data transfer
instructions
111101
A field
31
26 25
16 15
0
Parallel processing
instructions
111110
A field
B field
Figure 2.15 DSP Instruction Formats
Rev. 4.00 Sep. 14, 2005 Page 61 of 982
REJ09B0023-0400