11
UTMI_AVALID USB_UTMI_FABRIC In VBus compared to session valid threshold for a B
device (required to be between 0.8 V and 2 V)
1: Above the session valid threshold
0: Below the session valid threshold
UTMI_SESEND USB_UTMI_FABRIC In VBus compared to session end threshold (required to
be between 0.2 V and 0.8 V)
0: Above the session end threshold
1: Below the session end threshold
UTMI_HOSTDISCON USB_UTMI_FABRIC In Host mode only; must be asserted when a high-
speed disconnect occurs (in accordance with the
UTMI+ specification).
Note: Full/low-speed connections are monitored via
the LINESTATE signal.
UTMI_IDDIG USB_UTMI_FABRIC In Indicates USB controller connector type. High = B-
type, Low = A-type.
UTMI_VSTATUS[7:0] USB_UTMI_FABRIC In PHY status data; 8 bits wide as per UTMI+
specifications
UTMI_CLK USB_UTMI_FABRIC In Transceiver macro-cell clock; 60 MHz
UTMI_SUSPENDM USB_UTMI_FABRIC Out Asynchronous suspend mode indicator (derived from
signals from both CLK and XCLK flip-flops). When
enabled through bit 0 of the Power register, goes Low
when the device is in suspend mode. Otherwise High
(intended to drive a UTMI PHY).
UTMI_OPMODE[1:0] USB_UTMI_FABRIC Out Operating mode selector
00: Normal operation
01: Non-driving
10: Bit stuffing and NRZI encoding disabled
11: Reserved
UTMI_XDATAOUT[7:0] USB_UTMI_FABRIC Out Data to be transmitted
UTMI_TXVALID USB_UTMI_FABRIC Out Transmit data valid; indicates there is valid data to be
transmitted
UTMI_XCVRSEL[1:0] USB_UTMI_FABRIC Out Transceiver select
00: HS transceiver
01: FS transceiver
10: LS transceiver
11: FS transceiver, LS packet
UTMI_TERMSEL USB_UTMI_FABRIC Out Termination select. When 0, high-speed termination
is enabled; when 1, full-speed termination is enabled.
Note: May be used to switch the pull-up resistor on
D+.
UTMI_DRVBUS USB_UTMI_FABRIC Out VBus power enable (used when the USB controller is
operating as an A device)
UTMI_CHRGVBUS USB_UTMI_FABRIC Out Charge VBus (used during session request when the
USB controller is operating as a B device)
Table 5-2 • UTMI Ports
Port Name Port Group Direction Description
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