USB-100 Fujitsu Semiconductor America Inc, USB-100 Datasheet - Page 84

• Manufacturer Part Number: USB-100
• Description: KIT STARTER FOR USB
• Manufacturer: Fujitsu Semiconductor America Inc
• Type: MCUr

Specifications of USB-100

• Contents: Board, Cable
• For Use With/related Products: MB91F662
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 865-1108

5.3.3
the MB91F662 processes status interrupts and interrupts EP1 to EP5. However, this sample
program uses only the status interrupt.
responses to requests from the PC (USB host) to EP0.
The figure below shows the details of the USB interrupt processing. The USB function in
After connecting to the PC, the status interrupt routine in the USB function will process
USB interrupt processing
Status interrupt processing
EP0 data receive process
SETUP interrupt received?
Suspend interrupt?
EP0 data received?
Figure 5.3.3-1 Status interrupt 1 (usb_mouse_ctrl.c)
①
Yes
No
No
83
No
Yes
Yes
* If the power must be suspended, processing is performed to
move into standby mode in addition to clearing the SUSP flag.
Setup command receive process
Clear SUSP flag