Renesas SH7641 - Manual (Page 333)

Section 12 Bus State Controller (BSC)
Rev. 4.00 Sep. 14, 2005 Page 283 of 982
REJ09B0023-0400
Bit Bit Name
Initial
Value R/W Description
21
20
19
IWRRD2
WRRD1
IWRRD0
1
1
1
R/W
R/W
R/W
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 cycle 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
18
17
16
IWRRS2
IWRRS1
IWRRS0
1
1
1
R/W
R/W
R/W
Idle Cycles for Read-Read in the 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 cycle 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
15  0 R Reserved
This bit is always read as 0. The write value should
always be 0.