Datasheet

TUSB3410 Bootcode Flow
76
SLLS519H—January 2010TUSB3410, TUSB3410I
Setup (0) IN(1)
INT
Setup Stage Status Stage
1.Hardware generates interrupt
to MCU.
2.Hardware sets NAK on both the IN
and the OUT endpoints.
3.Set DIR bit in USBCTL to
indicate the data direction.
4.Decode the setup packet.
5.If another setup packet
arrives, abandon this one.
6.Execute appropriate routine per
1.Hardware does NOT generates
interrupt to MCU.
Table 11−10.
Figure 11−2. Control Write Transfer Without Data Stage
Table 11−10. Bootcode Response to Control Write Without Data Stage
CONTROL WRITE WITHOUT DATA STAGE ACTION IN BOOTCODE
Clear feature of device Stall
Clear feature of interface Stall
Clear feature of endpoint Clear endpoint stall
Set feature of device Stall
Set feature of interface Stall
Set feature of endpoint Stall endpoint
Set address Set device address
Set descriptor Stall
Set configuration Set bConfiguredNumber
Set interface SetbInterfaceNumber
Sync. frame Stall
11.9.1.2 Interrupt Handling Routine
The higher-vector number has a higher priority than the lower-vector number. Table 11−11 lists all the
interrupts and source of interrupts.