R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 385
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: 385 of 1686
- Download datasheet (10Mb)
(11) Power-Down Mode
If the PDOWN bit in SDCR is set to 1, the SDRAM is placed in power-down mode by bringing
the CKE signal to the low level in the non-access cycle. This power-down mode can effectively
lower the power consumption in the non-access cycle. However, please note that if an access
occurs in power-down mode, a cycle of overhead occurs because a cycle is needed to assert the
CKE in order to cancel the power-down mode.
Figure 9.31 shows the access timing in power-down mode.
RASL, RASU
CASL, CASU
A12/A11*
D31 to D0
A25 to A0
DACKn*
RD/WR
DQMxx
CKIO
CKE
CSn
BS
1
2
Power-down
Notes: 1. Address pin to be connected to pin A10 of SDRAM.
Figure 9.31 Power-Down Mode Access Timing
2. The waveform for DACKn is when active low is specified.
Tnop
Tr
Tc1
Td1
Rev. 3.00 Sep. 28, 2009 Page 353 of 1650
Tde
Section 9 Bus State Controller (BSC)
Tap
Power-down
REJ09B0313-0300
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