Epson S2R72V18 Technical Manual page 130

Timing
Parameter
T0 Sets H_NegoControl_0.AutoMode to "GoDISABLED." (F/W)
Disables the disconnect detection function. (H/W)
T1 Sets the port speed for the transceiver selection and terminal
selection to "FS" mode after final bus activity ends and sets the
operating mode (H_XcvrControl.OpMode[1:0]) to
"PowerDown." (H/W)
T2 The device detects Suspend state and switches to FS mode.
T3 Enables the disconnect detection function. (H/W)
Issues disabled change completion status. (H/W)
Note: Brackets {} indicate names defined in the USB 2.0 standards.
S2R72V18 Technical Manual (Rev.1.00)
Table 1-44 Disabled timing values (HS mode)
Description
EPSON
1. Functions
Value
0 (reference)
T1
T1 + 3.0 ms < T2 {T
WTREV
T1 + 3.125 ms
T1 + 4 ms < T3
} <
113