R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 417

• 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

Table 9.24 Number of Idle Cycles Inserted between Access Cycles to Different Memory
Figure 9.54 shows sample estimation of idle cycles between access cycles. In the actual operation,
the idle cycles may become shorter than the estimated value due to the write buffer effect or may
become longer due to internal bus idle cycles caused by stalling in the pipeline due to CPU
instruction execution or CPU register conflicts. Please consider these errors when estimating the
idle cycles.
Previous Cycle SRAM
SRAM
Burst ROM
(asynchronous)
MPX-I/O
Byte SRAM
(BAS = 0)
Byte SRAM
(BAS = 1)
SDRAM
SDRAM
(low-frequency
mode)
PCMCIA
Burst MPX
Burst ROM
(synchronous)
Types
0
0
1
0
1
1
1.5
0
0
0
Burst ROM
(Asynchronous)
0
0
1
0
1
1
1.5
0
0
0
MPX-
I/O
1
1
0
1
2
2
2.5
1
1
1
Byte
SRAM
(BAS =
0)
0
0
1
0
1
1
1.5
0
0
0
Byte
SRAM
(BAS =
1)
1
1
1
1
0
0
0.5
1
1
1
Next Cycle
SDRAM
1
1
1
1
0
0
⎯
1
1
1
Rev. 3.00 Sep. 28, 2009 Page 385 of 1650
SDRAM
(Low-
Frequency
Mode)
1.5
1.5
1.5
1.5
1.5
⎯
1
1.5
1.5
1.5
Section 9 Bus State Controller (BSC)
PCMCIA
0
0
1
0
1
1
1.5
0
0
0
Burst
MPX
0
0
1
0
1
1
1.5
0
0
0
REJ09B0313-0300
Burst ROM
(Synchronous)
0
0
1
0
1
1
1.5
0
0
0