R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 282
R0K572030S000BE
Manufacturer Part Number
R0K572030S000BE
Description
KIT DEV FOR SH7203
Manufacturer
Renesas Electronics America
Series
Renesas Starter Kits (RSK)r
Type
MCUr
Specifications of R0K572030S000BE
Contents
CPU Board, LCD Module, E10A-Lite Emulator, Cable, QuickStart Guide and CD-ROM
Silicon Manufacturer
Renesas
Kit Contents
Board
Silicon Family Name
SH7203
Silicon Core Number
R5S72030W200FP
Tool / Board Applications
General Purpose MCU, MPU, DSP, DSC
Mcu Supported Families
SH7203
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
SH7203
Lead Free Status / Rohs Status
Compliant
- Current page: 282 of 1686
- Download datasheet (10Mb)
Section 9 Bus State Controller (BSC)
9.4.2
CSnBCR is a 32-bit readable/writable register that specifies the function of each area, the number
of idle cycles between bus cycles, and the bus width.
Do not access external memory other than area 0 until CSnBCR initial setting is completed.
Idle cycles may be inserted even when they are not specified. For details, see section 9.5.12, Wait
between Access Cycles.
Initial value:
Initial value:
Rev. 3.00 Sep. 28, 2009 Page 250 of 1650
REJ09B0313-0300
Bit
31
30 to 28 IWW[2:0]
Note:
R/W:
R/W:
Bit:
Bit:
*
CSn Space Bus Control Register (CSnBCR) (n = 0 to 7)
CSnBCR samples the external pin (MD) that specify the bus width at power-on reset.
Bit Name
⎯
31
15
R
R
0
0
-
-
R/W
R/W
30
14
0
0
TYPE[2:0]
IWW[2:0]
R/W
R/W
29
13
1
0
Initial
Value
0
011
R/W
R/W
28
12
1
0
ENDIAN
R/W
R/W
27
11
0
0
R/W
R
R/W
IWRWD[2:0]
R/W
R/W
26
10
1*
1
BSZ[1:0]
Description
Reserved
This bit is always read as 0. The write value should
always be 0.
Idle Cycles between Write-Read Cycles and Write-
Write Cycles
These bits specify the number of idle cycles to be
inserted after the access to a memory that is
connected to the space. The target access cycles are
the write-read cycle and write-write cycle.
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
R/W
R/W
25
1*
1
9
R/W
24
R
0
8
0
-
IWRWS[2:0]
R/W
23
R
1
7
0
-
R/W
22
R
1
6
0
-
R/W
21
R
0
5
0
-
IWRRD[2:0]
R/W
20
R
1
4
0
-
R/W
19
R
1
3
0
-
R/W
18
R
0
2
0
-
IWRRS[2:0]
R/W
17
R
1
1
0
-
R/W
16
R
1
0
0
-
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