SH7750_08 Datasheet, PDF (477/1162 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 13 Bus State Controller (BSC)
Bits 25 to 23—Area 5 Wait Control (A5W2–A5W0): These bits specify the number of wait
states to be inserted for area 5. For details on MPX interface setting, see table 13.6, MPX Interface
is Selected (Areas 0 to 6).
Bit 25: A5W2
0
1
Bit 24: A5W1
0
1
0
1
Bit 23: A5W0
0
1
0
1
0
1
0
1
Description
First Cycle
Inserted Wait States
RDY Pin
0
Ignored
1
Enabled
2
Enabled
3
Enabled
6
Enabled
9
Enabled
12
Enabled
15 (Initial value)
Enabled
Bits 22 to 20—Area 5 Burst Pitch (A5B2–A5B0): These bits specify the number of wait states to
be inserted from the second data access onward in a burst transfer with the burst ROM interface
selected.
Bit 22: A5B2
0
1
Bit 21: A5B1
0
1
0
1
Bit 20: A5B0
0
1
0
1
0
1
0
1
Description
Burst Cycle (Excluding First Cycle)
Wait States Inserted from Second
Data Access Onward
RDY Pin
0
Ignored
1
Enabled
2
Enabled
3
Enabled
4
Enabled
5
Enabled
6
Enabled
7 (Initial value)
Enabled
Rev.7.00 Oct. 10, 2008 Page 393 of 1074
REJ09B0366-0700