| 7 |
ISOUP |
R/W |
0x0 |
Isochronous Update.
This bit is only valid for isochronous transfers.
0x0 = No effect.
0x1 = The USB controller waits for an SOF token from the time the TXRDY bit is set in the USBTXCSRLn register before sending the packet. If an IN token is received before an SOF token, then a zero-length data packet is sent.
|
| 6 |
SOFTCONN |
R/W |
0x0 |
Soft Connect/Disconnect.
0x0 = The USB D+/D- lines are tri-stated.
0x1 = The USB D+/D- lines are enabled.
|
| 5 |
HSENAB |
R/W |
0x1 |
High Speed Enable.
0x0 = The USB operates in full-speed mode.
0x1 = The USB negotiates for high-speed mode when the device is reset by the hub.
|
| 4 |
HSMODE |
R |
0x0 |
High Speed Enable.
Allowance is made for Tiny-J signaling in determining the transfer speed to select.
0x0 = The USB operates in full-speed mode.
0x1 = USB reset has completed, and the high-speed mode has been successfully negotiated.
|
| 3 |
RESET |
R |
0x0 |
RESET Signaling.
0x0 = RESET signaling is not present on the bus.
0x1 = RESET signaling is present on the bus.
|
| 2 |
RESUME |
R/W |
0x0 |
RESUME Signaling.
This bit must be cleared by software 10 ms (a maximum of 15 ms) after being set.
0x0 = Ends RESUME signaling on the bus.
0x1 = Enables RESUME signaling when the Device is in SUSPEND mode.
|
| 1 |
SUSPEND |
R |
0x0 |
SUSPEND Mode.
0x0 = This bit is cleared when software reads the interrupt register or sets the RESUME bit above.
0x1 = The USB controller is in SUSPEND mode.
|
| 0 |
PWRDNPHY |
R/W |
0x0 |
Power Down PHY.
0x0 = No effect.
0x1 = Powers down the internal USB PHY.
|