R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 1257
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
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1. If IITV = 0
2. In any cases other than IITV = 0
Figure 23.18 shows an example of the buffer flush function of this module. When an unanticipated
token is received prior to the interval frame, this module sends the written data or a zero-length
packet according to the buffer state.
Figure 23.19 shows an example of this module generating an interval error. There are five types of
interval errors, as shown below. The interval error is generated at the timing indicated by (1) in the
figure, and the IN buffer flush function is activated.
If an interval error occurs during an IN transfers, the buffer flush function is activated; and if it
occurs during an OUT transfer, an NRDY interrupt is generated.
The OVRN bit should be used to distinguish between NRDY interrupts such as received packet
errors and overrun errors.
In response to tokens that are shaded in the figure, responses occur based on the buffer memory
status.
1. IN direction:
2. OUT direction:
The buffer flush operation starts from the next frame after the pipe becomes valid.
The buffer flush operation is carried out subsequent to the first normal transaction.
⎯ If the buffer is in the transmission enabled state, the data is transferred as a normal
⎯ If the buffer is in the transmission disabled state, a zero-length packet is sent and an
⎯ If the buffer is in the reception enabled state, the data is received as a normal response.
⎯ If the buffer is in the reception disabled state, the data is discarded and an overrun error
Buffer A
Buffer B
response.
underrun error occurs.
occurs.
Empty
Figure 23.18 Example of Buffer Flush Function Operation
Empty
Writing
Writing
Writing
ended
Writing ended
Transfer enabled
Section 23 USB 2.0 Host/Function Module (USB)
Rev. 3.00 Sep. 28, 2009 Page 1225 of 1650
Empty
Transfer enabled
Writing
REJ09B0313-0300
Writing
ended
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