DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 1256

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

Specifications of DS72030W200FPV

• Core Size: 32bit
• Program Memory Size: 32KB
• Cpu Speed: 200MHz
• Digital Ic Case Style: QFP
• No. Of Pins: 240
• Supply Voltage Range: 1.1V To 1.3V
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Section 23 USB 2.0 Host/Function Module (USB)
(5)
If an SOF packet or a μSOF packet is received without receiving an IN token in the interval frame
during isochronous data transmission, this module operates as if an IN token had been corrupted,
and clears the buffer for which transmission is enabled, putting that buffer in the writing enabled
state.
If a double buffer is being used and writing to both buffers has been completed, the buffer
memory that was cleared is seen as the data having been sent at the same interval frame, and
transmission is enabled for the buffer memory that is not discarded with SOF or μSOF packets
reception.
The timing at which the operation of the buffer flush function varies depending on the value set
for the IITV bit.
Rev. 3.00 Sep. 28, 2009 Page 1224 of 1650
REJ09B0313-0300
Received token
Received token
Received token
Sent packet
Buffer A
Buffer B
Buffer A
Buffer B
Sent packet
Buffer A
Buffer B
Sent packet
SOF packet
Buffer A
Buffer B
Isochronous Transfer Transmission Buffer Flush when the Function Controller
Function Is Selected
Empty
Empty
Empty
Empty
Figure 23.17 Example of Data Setup Function Operation
Empty
Empty
Empty
Writing
Writing
Writing
Writing
Writing ended
Writing ended
Writing ended
Writing
Writing
Writing
IN
IN
Null
Null
IN
Null
Transfer
enabled
enabled
Writing ended
Transfer
Empty
Writing ended
Writing ended
Data-A
Data-A
IN
IN
Empty
Empty
IN
Null
IN
Null
Transfer enabled
Writing ended
Writing
Writing
enabled
enabled
Transfer
Transfer
Transfer enabled
Data-B
Data-B
IN
IN
Writing ended
Writing ended
Empty
Empty
Data-A
IN
Empty