Datasheet

Section 14 Universal Serial Bus (USB)
Rev.7.00 Dec. 24, 2008 Page 481 of 698
REJ09B0074-0700
Bit Bit Name Initial Value R/W Description
7 BRST 0 R/(W)* Bus Reset
Set to 1 when the bus reset signal is detected on the
USB bus. The corresponding interrupt output is
EXIRQ0 or EXIRQ1.
Note that BRST is also set to 1 if D+ is not pulled-up
during USB cable connection.
6 — 0 R Reserved
This bit is always read as 0 and cannot be modified.
5 EP3TR 0 R/(W)* EP3 Transfer Request
Set to 1 if there is no valid data in the FIFO when an IN
token is sent from the host to EP3. The corresponding
interrupt output is EXIRQ0 or EXIRQ1.
4 EP3TS 0 R/(W)* EP3 Transmit Complete
Set to 1 if the data written in EP3 is transmitted to the
host normally and the ACK handshake is returned. The
corresponding interrupt output is EXIRQ0 or EXIRQ1.
3 EP0oTS 0 R/(W)* EP0o Receive Complete
Set to 1 if EP0o receives data from the host normally
and returns the ACK handshake to the host. The
corresponding interrupt output is EXIRQ0 or EXIRQ1.
2 EP0iTR 0 R/(W)* EP0i Transfer Request
Set to 1 if there is no valid data in the FIFO when an
IN token is sent from the host to EP0i. The
corresponding interrupt output is EXIRQ0 or EXIRQ1.
1 EP0iTS 0 R/(W)* EP0i Transmit Complete
Set to 1 if the data written in EP0i is transmitted to the
host normally and the ACK handshake is returned.
The corresponding interrupt output is EXIRQ0 or
EXIRQ1.
0 SetupTS 0 R/(W)* Setup Command Receive Complete
Set to 1 if EP0s normally receives 8-byte command
data to be decoded by the function from the host and
returns the ACK handshake to the host. The
corresponding interrupt output is EXIRQ0 or EXIRQ1.
Note:* The write value should always be 0 to clear this flag.