R0K572011S000BE Renesas Electronics America, R0K572011S000BE Datasheet - Page 286

• Manufacturer Part Number: R0K572011S000BE
• Description: KIT STARTER FOR SH7201
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K572011S000BE

• Contents: CPU Board, LCD Display Module, E8 Emulator, Cable, QuickStart Guide and CD-ROM
• For Use With/related Products: SH7201
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 9 Bus State Controller (BSC)
(c)
Figures 9.21 and 9.22 show timing examples for byte accesses to the SDRAM with a 16-bit bus
width. In the SDRAM access, the DQM signal is asserted when data is masked.
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Byte Access Control by DQM
Figure 9.22 Byte Read Timing from SDRAM with 16-Bit Bus Width (Example)
Figure 9.21 Byte Write Timing to SDRAM with 16-Bit Bus Width (Example)
SDRAM command
SDRAM command
Data bus [15:8]
Data bus [15:8]
Data bus [7:0]
Data bus [7:0]
DQM1
DQM0
DQM1
DQM0
CKIO
CKIO
ACT
ACT
WR
RD
d0
PRA
DSL
Low level
Hi-Z
Hi-Z
Low level
PRA
d0
R01UH0026EJ0300 Rev. 3.00
SH7201 Group
Sep 24, 2010