Renesas R5S72621 User Manual

Page of 2152
 
 
 
 
 
Section 9   Bus State Controller 
 
R01UH0134EJ0400  Rev. 4.00  
 
Page 239 of 2108 
Sep 24, 2014 
 
 
 
SH7262 Group, SH7264 Group 
9.4.1
 
Common Control Register (CMNCR) 
CMNCR is a 32-bit register that controls the common items for each area.  
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
R
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R/W
R/W
Bit:
Initial value:
R/W:
Bit:
Initial value:
R/W:
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
BLOCK
DPRTY[1:0]
DMAIW[2:0]
DMA
IWA
-
-
-
HIZ
MEM
HIZ
CNT*
 
 
Bit Bit 
Name 
Initial 
Value R/W  Description 
31 to 13 
 All 
Reserved 
These bits are always read as 0. The write value 
should always be 0. 
12 
 1 
Reserved 
This bit is always read as 1. The write value should 
always be 1. 
11 BLOCK 
0 R/W 
Bus 
Lock 
Specifies whether or not the 
BREQ signal is received. 
0: Receives 
BREQ. 
1: Does not receive 
BREQ.