C8051F326-TB Silicon Laboratories Inc, C8051F326-TB Datasheet - Page 97
C8051F326-TB
Manufacturer Part Number
C8051F326-TB
Description
BOARD PROTOTYPING W/C8051F326
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Datasheet
1.C8051F326-TB.pdf
(140 pages)
Specifications of C8051F326-TB
Contents
Board
Processor To Be Evaluated
C8051F326/F327
Interface Type
USB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F326
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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12.6. Function Addressing
The FADDR register holds the current USB0 function address. Software should write the host-assigned
7-bit function address to the FADDR register when received as part of a SET_ADDRESS command. A new
address written to FADDR will not take effect (USB0 will not respond to the new address) until the end of
the current transfer (typically following the status phase of the SET_ADDRESS command transfer). The
UPDATE bit (FADDR.7) is set to ‘1’ by hardware when software writes a new address to the FADDR regis-
ter. Hardware clears the UPDATE bit when the new address takes effect as described above.
Bit7:
Bits6–0: Function Address
Update
Bit7
R
Update: Function Address Update
Set to ‘1’ when software writes the FADDR register. USB0 clears this bit to ‘0’ when the new
address takes effect.
0: The last address written to FADDR is in effect.
1: The last address written to FADDR is not yet in effect.
Holds the 7-bit function address for USB0. This address should be written by software when
the SET_ADDRESS standard device request is received on Endpoint0. The new address
takes effect when the device request completes.
USB Register Definition 12.7. FADDR: USB0 Function Address
R/W
Bit6
R/W
Bit5
R/W
Bit4
Function Address
Rev. 1.1
R/W
Bit3
R/W
Bit2
R/W
Bit1
C8051F326/7
R/W
Bit0
USB Address:
00000000
Reset Value
0x00
97
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