Epson S2R72V18 Technical Manual page 144

Timing
Parameter
T0 Sets H_NegoControl_0.AutoMode to "GoRESET." (F/W)
Enables the device chirp detection function. (H/W)
T1 Sets the transceiver selection to "FS."
Sets the port speed to "FS."
Disables the device chirp detection function. (H/W)
T2 Sets the terminal selection to "FS." (H/W)
T3 Issues reset completion status. (H/W)
T4 Sets H_NegoControl_0.AutoMode to "GoOPERATIONAL."
(reference) (F/W)
T5 Sends the first SOF. (H/W)
(reference)
Note: Brackets {} indicate names defined in the USB 2.0 standards.
S2R72V18 Technical Manual (Rev.1.00)
Table 1-50 Reset timing values (FS mode)
Description
EPSON
1. Functions
Value
0 (reference)
T0 + 7.0 ms {T } < T1
UCHEND
T0 + 50 ms {T } < T2
DRSTR
T2 + 150 µs < T3
T4
T4 + 0.9 ms < T5 < T4 + 1.1 ms
(T5 < T2 + 3 ms)
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