R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 1220

• 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)
2. When SOFRM = 1 is set
When the function controller function is selected, this module updates the frame number and
generates an SOFR interrupt if it detects a new SOF packet during full-speed operation. During
high-speed operation, however, this module does not update the frame number, or generates no
SOFR interrupt until the module enters the μSOF locked state. Also, the SOF interpolation
function is not activated. The μSOF lock state is the state in which μSOF packets with different
frame numbers are received twice continuously without error occurrence.
The conditions under which the μSOF lock monitoring begins and stops are as follows.
1. Conditions under which μSOF lock monitoring begins
2. Conditions under which μSOF lock monitoring stops
Rev. 3.00 Sep. 28, 2009 Page 1188 of 1650
REJ09B0313-0300
The SOFR interrupt is generated when SOF packets are damaged or missing. During high-
speed communication, interrupts are generated only if the first packet of a μSOF packet with
the same frame number is damaged or missing. (Corrupted or missing SOFs are recognized by
the SOF interpolation function. For details, see section 23.4.9, SOF Interpolation Function.)
USBE = 1
USBE = 0 (software reset), a USB bus reset is received, or suspended state is detected.
μSOF lock
Peripheral Device
μSOF packet
μSOF number
Frame number
SOFR interrupt
(SOFRM = 0)
(SOFRM = 1)
μSOF packet
μSOF number
μSOF lock
SOFR interrupt
6
7
Figure 23.8 Example of SOFR Interrupt Output Timing
SOF interpolation
0
7
3
Not locked
1
0
1
2
6
SOF interpolation
3
7
SOF interpolation
4
0
Not locked
5
6
7
7
0
0
4
1
SOF interpolation function
SOF missing
1
2
7
0
3
SOF interpolation,
missing
4
1
5
2
6
7
7
0
0
1
6
1