Epson S2R72V18 Technical Manual page 134

Timing
Parameter
T0 Sets H_NegoControl_0.AutoMode to "GoDISABLED." (F/W)
Disables the disconnect detection function. (H/W)
T1 Sets the operating mode (H_XcvrControl.OpMode[1:0]) to
"PowerDown" after final bus activity ends. (H/W)
T2 The device detects Suspend state.
T3 Enables the disconnect detection function.
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 1-46 Disabled timing values (LS mode)
Description
EPSON
1. Functions
Value
0 (reference)
T1
T1 + 3.0 ms < T2 {T
WTREV
T1 + 3.125 ms
T1 + 4 ms < T3
} <
117