HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 358

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 9
Rev. 3.00 Jan. 18, 2008 Page 296 of 1458
REJ09B0033-0300
Bit
21
20
19
18
17
16
Bit Name
IWRRD2
IWRRD1
IWRRD0
IWRRS2
IWRRS1
IWRRS0
Bus State Controller (BSC)
Initial
Value
0
1
1
0
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Idle Cycles for Read-Read in Another Space
Specify the number of idle cycles to be inserted after the
access to a memory that is connected to the space. The
target cycle is a read-read cycle of which continuous
accesses switch between different spaces.
000: No idle cycle inserted
001: 1 idle cycles inserted
010: 2 idle cycles inserted
011: 4 idle cycles inserted
100: 6 idle cycles inserted
101: 8 idle cycles inserted
110: 10 idle cycles inserted
111: 12 idle cycles inserted
Idle Cycles for Read-Read in Same Space
Specify the number of idle cycles to be inserted after the
access to a memory that is connected to the space. The
target cycle is a read-read cycle of which continuous
accesses are for the same space.
000: No idle cycle inserted
001: 1 idle cycles inserted
010: 2 idle cycles inserted
011: 4 idle cycles inserted
100: 6 idle cycles inserted
101: 8 idle cycles inserted
110: 10 idle cycles inserted
111: 12 idle cycles inserted