SH7712 Datasheet, PDF (483/978 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 12 Bus State Controller (BSC)
Table 12.21 lists a relationship between bus width, access size, and the number of bursts. Figure
12.32 shows a timing chart.
Table 12.21 Relationship between Bus Width, Access Size, and Number of Bursts
Bus Width
8 bits
16 bits
32 bits
BEN Bit
Not affected
Not affected
Not affected
0
1
Not affected
Not affected
Not affected
0
1
Not affected
Not affected
Not affected
Not affected
Access Size
8 bits
16 bits
32 bits
16 bytes
8 bits
16 bits
32 bits
16 bytes
8 bits
16 bits
32 bits
16 bytes
Number of
Bursts
1
2
4
16
4
1
1
2
8
2
1
1
1
4
Number of
Accesses
1
1
1
1
4
1
1
1
1
4
1
1
1
1
Rev. 1.00 Dec. 27, 2005 Page 441 of 932
REJ09B0269-0100