C8051F380/1/2/3/4/5/6/7/C
SFR Definition 21.2. USB0ADR: USB0 Indirect Address
Bit
7
6
5
4
3
2
1
0
Name
Type
BUSY
R/W
AUTORD
R/W
USBADDR[5:0]
R/W
Reset
0
0
0
0
0
0
0
0
SFR Address = 0x96; SFR Page = All Pages
Bit Name Description
Write
Read
7
BUSY
USB0 Register Read
Busy Flag.
0: No effect.
1: A USB0 indirect regis-
0: USB0DAT register data
is valid.
accesses.
This bit is used during ter read is initiated at the
indirect USB0 register address specified by the
USBADDR bits.
1: USB0 is busy access-
ing an indirect register;
USB0DAT register data is
invalid.
6
AUTORD
USB0 Register Auto-read Flag.
This bit is used for block FIFO reads.
0: BUSY must be written manually for each USB0 indirect register read.
1: The next indirect register read will automatically be initiated when software
reads USB0DAT (USBADDR bits will not be changed).
5:0
176
USBADDR[5:0] USB0 Indirect Register Address Bits.
These bits hold a 6-bit address used to indirectly access the USB0 core registers.
Table 21.2 lists the USB0 core registers and their indirect addresses. Reads and
writes to USB0DAT will target the register indicated by the USBADDR bits.
Rev. 1.4
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