Renesas SH7641 - Manual (Page 441)

Section 12 Bus State Controller (BSC)
Rev. 4.00 Sep. 14, 2005 Page 391 of 982
REJ09B0023-0400
Table 12.20 Minimum Number of Idle Cycles during DMAC Single Address Mode Transfer
to the Normal Space Interface from the External Device with
DACK
(1) Transfer from the external device with
DACK to the normal space interface
BSC Register Setting * 3
When Access Size is
Less than Bus Width
CSnWCR.WM
Setting CMNCR.DMAIWA
Setting CMNCR.DMAIW
Idle Setting Continuous
Transfer
* 1
Non-Continuous
Transfer
* 2
1 0
 0 2
0 0
 1 2
1 1 0 0 2
0 1 0 1 2
1 1 1 1 2
0 1 1 1 2
1 1 2 2 2
0 1 2 2 2
1 1 4 4 4
0 1 4 4 4
0, 1 1 n (n ≥6) n n