R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 280
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: 280 of 1686
- Download datasheet (10Mb)
Section 9 Bus State Controller (BSC)
Rev. 3.00 Sep. 28, 2009 Page 248 of 1650
REJ09B0313-0300
Bit
8 to 6
5
4
Bit Name
DMAIW[2:0] 000
DMAIWA
⎯
Initial
Value
0
1
R/W
R/W
R/W
R
Description
Wait states between access cycles when DMA single
address transfer is performed.
Specify the number of idle cycles to be inserted after
an access to an external device with DACK when DMA
single address transfer is performed. The method of
inserting idle cycles depends on the contents of
DMAIWA.
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
Method of inserting wait states between access cycles
when DMA single address transfer is performed.
Specifies the method of inserting the idle cycles
specified by the DMAIW[2:0] bit. Clearing this bit will
make this LSI insert the idle cycles when another
device, which includes this LSI, drives the data bus
after an external device with DACK drove it. However,
when the external device with DACK drives the data
bus continuously, idle cycles are not inserted. Setting
this bit will make this LSI insert the idle cycles after an
access to an external device with DACK, even when
the continuous access cycles to an external device
with DACK are performed.
0: Idle cycles inserted when another device drives the
1: Idle cycles always inserted after an access to an
Reserved
This bit is always read as 1. The write value should
always be 1.
data bus after an external device with DACK drove
it.
external device with DACK
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