DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 1254

• 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)
(3)
The isochronous interval can be set using the IITV bits in PIPEPERI. The interval counter enables
the functions shown in table 23.26 when the function controller function is selected. When the
host controller function is selected, this module generates the token issuance timing. When the
host controller function is selected, the interval counter operation is the same as the interrupt
transfer operation.
Table 23.26 Functions of the Interval Counter when the Function Controller Function is
The interval count is carried out when an SOF is received or for interpolated SOFs, so the
isochronism can be maintained even if an SOF is damaged. The frame interval that can be set is
the 2
(a)
This module initializes the interval counter under the following conditions.
1. Power-on reset
2. Software reset
3. USB bus reset
4. Buffer memory initialization using the ACLRM bit
Rev. 3.00 Sep. 28, 2009 Page 1222 of 1650
REJ09B0313-0300
Transfer
Direction
IN
OUT
The IITV bit is initialized.
The IITV bit is initialized.
The IITV bit is not initialized, but the counting is initialized.
The IITV bits are not initialized but the count value is. Setting the ACLRM bit to 0 starts
counting from the value set in the IITV bits.
IITV
Interval Counter
Counter Initialization when the Function Controller Function is Selected
frame or 2
Selected
Function
IN buffer flush function
Notifies that a token not
being received
IITV
μ frames.
Conditions for Detection
When a token cannot be normally received in the
interval frame during an isochronous IN transfer
When a token cannot be normally received in the
interval frame during an isochronous OUT transfer