upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 295

• Manufacturer Part Number: upd78f0730
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Bit position
0
EPHALT
Bit name
CHAPTER 12 USB FUNCTION CONTROLLER (USBF)
This bit indicates that an endpoint has stalled.
This bit is also set to 1 when an endpoint has stalled by setting FW.
Identify the endpoint that has stalled, by referencing the UF0EPS2 register. This bit is
not automatically cleared to 0 even when the CLEAR_FEATURE Endpoint,
SET_INTERFACE, or SET_CONFIGURATION request is received. It is not
automatically cleared to 0, either, if the next SETUP token is received in case of overrun
of Endpoint0.
Caution Even if Halt Feature of Endpoint0 is set and this interrupt request is
1: Endpoint has stalled (interrupt request is generated).
0: Endpoint has not stalled (default value).
Preliminary User’s Manual U19014EJ1V0UD
generated, bit 0 of the UF0EPS2 register is masked and cleared to 0
between when a SET_FEATURE Endpoint0, CLEAR_FEATURE Endpoint0,
or GET_STATUS Endpoint0 request, or FW-processed request is received
and when a SETUP token other than the above is received.
Function
(2/2)
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