Technical data

ManualsBrandsQ-Waves ManualsAdapterWireless USB Audio/Video Adapter Set

USB INTERRUPT ROUTINE

YES

EOP ?

RESET SUSPEND COUNTER

NO

NO

SETUP ?

YES

NO

OUT TOKEN

YES

TO EP0 ?

NO

EP0 TX COMPLETED ?

YES

NO

EP1 TX COMPLETED ?

YES

DISABLE EP1 TRANSMIT &

CLEAR EP1 TX FLAG

NO

EP2 TX COMPLETED ?

YES

DISABLE EP2 TRANSMIT &

CLEAR EP2 TX FLAG

NO

RESUME FORM

YES

CLEAR RESUME FLAG

HOST?

RETURN FROM INTERRUPT

SETUP HANDLER

OUT EP0 HANDLER

IN EP0 HANDLER

Firmware Description

USB and PS/2 Multimedia Keyboard Interface, Rev. 1

Freescale Semiconductor 19

Figure 1-12. USB Interrupt Routine