Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 21 USB FUNCTION CONTROLLER (USBF)
R01UH0042EJ0500 Rev.5.00 Page 1055 of 1513
Aug 12, 2011
(e) GET_STATUS() request
A STALL response is made in the data stage if any of wValue, wIndex, or wLength is other than the values
shown in Table 21-3. A STALL response is also made in the data stage if the target is an interface or an
endpoint that does not exist.
• Default state: The value stored in the target status register
Note
is returned only when the GET_STATUS()
request has been received and when the request is for a device or Endpoint0; otherwise a
STALL response is made in the data stage.
• Addressed state: The value stored in the target status register
Note
is returned only when the GET_STATUS()
request has been received and when the request is for a device or Endpoint0; otherwise a
STALL response is made in the data stage.
• Configured state: The value stored in the target status register
Note
is returned only when the GET_STATUS()
request has been received and when the request is for a device or an endpoint that exists;
otherwise a STALL response is made in the data stage.
Note The target status register is as follows.
• If the target is a device: UF0 device status register L (UF0DSTL)
• If the target is endpoint 0: UF0 EP0 status register L (UF0E0SL)
• If the target is endpoint n: UF0 EPn status register L (UF0EnSL) (n = 1 to 4, 7)
(f) SET_ADDRESS() request
A STALL response is made in the status stage if either of wIndex or wLength is other than the values shown in
Table 21-3. A STALL response is also made if the specified device address is greater than 127.
• Default state: The device enters the Addressed state and changes the USB Address value to be input to
SIE into a specified address value if the specified address is other than 0 when the
SET_ADDRESS() request has been received. If the specified address is 0, the device
remains in the Default state.
• Addressed state: The device enters the Default state and returns the USB Address value to be input to SIE
to the default address if the specified address is 0 when the SET_ADDRESS() request
has been received. If the specified address is other than 0, the device remains in the
Addressed state, and changes the USB Address value to be input to SIE into a specified
new address value.
• Configured state: The device remains in the Configured state and returns the USB Address value to be input
to SIE to the default address if the specified address is 0 when the SET_ADDRESS()
request has been received. In this case, the endpoints other than endpoint 0 remain valid,
and control transfer (IN), control transfer (OUT), bulk transfer and interrupt transfer for an
endpoint other than endpoint 0 are also acknowledged. If the specified address is other
than 0, the device remains in the Configured state and changes the USB Address value to
be input to SIE into a specified new address value.