R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 1258

• 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

Section 23 USB 2.0 Host/Function Module (USB)
23.4.9
When the function controller function is selected and if data could not be received at intervals of 1
ms (when using full-speed operation) or 125 μs (when using high-speed operation) because an
SOF packet was corrupted or missing, this module interpolates the SOF. The SOF interpolation
operation begins when USBE = 1, SCKE = 1 and an SOF packet is received. The interpolation
function is initialized under the following conditions.
• Power-on reset
• Software reset
• USB bus reset
• Suspended state detected
Also, the SOF interpolation operates under the following specifications.
• 125 μs/1 ms conforms to the results of the reset handshake protocol.
• The interpolation function is not activated until an SOF packet is received.
• After the first SOF packet is received, either 125 μs or 1 ms is counted with the USB clock of
• After the second and subsequent SOF packets are received, interpolation is carried out at the
• Interpolation is not carried out in the suspended state or while a USB bus reset is being
Rev. 3.00 Sep. 28, 2009 Page 1226 of 1650
REJ09B0313-0300
Normal transfer
Token corrupted
Packet inserted
Frame misaligned
Frame misaligned
Token delayed
48 MHz, and interpolation is carried out.
previous reception interval.
received. (With suspended transitions in high-speed operation, interpolation continues for 3 ms
after the last packet is received.)
SOF
Figure 23.19 Example of an Interval Error Being Generated when IITV = 1
SOF Interpolation Function
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