FNADDR
Function Address
7FDB
b7
b6
b5
b4
b3
b2
b1
b0
0
FA6
FA5
FA4
FA3
FA2
FA1
FA0
R
x
R
x
R
x
R
x
R
x
R
x
R
x
R
x
Figure 12-34. Function Address Register
During the USB enumeration process, the host sends a device a unique 7-bit address,
which the EZ-USB core copies into this register. There is normally no reason for the CPU
to know its USB device address because the USB Core automatically responds only to its
assigned address.
Note
During ReNumeration the USB Core sets register to 0 to allow the EZ-USB chip to
respond to the default address 0.
Page 12-42
Chapter 12. EZ-USB Registers
EZ-USB TRM v1.9
CYPRESS [ CYPRESS ]
