TCC720 Datasheet, PDF (71/143 Pages) List of Unclassifed Manufacturers – 32-bit RISC Microprocessor For Digital Media Player

TCC720
32-bit RISC Microprocessor for Digital Media Player
Dec. 16. 2002
USB CONTROLLER
Preliminary Spec 0.51
Function Address Register (UBFADR)
0X80000500
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Reserved
UP
FADR
UP [7]
Function Address Update
UP = 0
Function address doesn’t be updated
UP = 1
Function address can be updated with FADR
* The MCU sets this bit whenever it updates the FADR field. This bit is write only register.
FADR [6:0]
n
Function Address
Function address
This register maintains the USB Device Address assigned by the host. The control program
should write the value received through a SET_ADDRESS descriptor from host to this register.
The address is used for the next token. The UP bit field should be set whenever the FADR
field is written. The FADR field is used after the Status phase of a Control transfer, which is
signaled by the clearing of the DATA_END bit in the endpoint EP0 CSR.
8-3