SH7730 Datasheet, PDF (77/1188 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7780 Series

Section 2 Programming Model
Section 2 Programming Model
The programming model of the SH-4A is explained in this section. This SLI has registers and data
formats as shown below.
2.1 Data Formats
The data formats supported in this LSI are shown in figure 2.1.
Byte (8 bits)
Word (16 bits)
31
Longword (32 bits)
Single-precision floating-point (32 bits)
31 30
22
se
63 62
51
Double-precision floating-point (64 bits) s e
f
[Legend]
s :Sign field
e :Exponent field
f :Fraction field
Figure 2.1 Data Formats
70
15
0
0
0
f
0
Rev. 1.00 Sep. 19, 2007 Page 29 of 1136
REJ09B0359-0100