If An Ls Device Is Connected - Epson S2R72V18 Technical Manual

1. Functions
1.4.10.3.3.3
time
HostState[2:0] OPERATIONAL
DisabledCmp
XcvrSelect[1:0] LS
TermSelect
Normal Operation
OpMode[1:0]
PortSpeed[1:0] LS
LineState[1:0]
'J' / 'K' State
DP / DM Last Activity
116

If an LS Device is Connected

The following actions are taken if an LS device is connected. The LSI hardware
automatically performs steps (2) to (6) below.
(1) The firmware sets the host state change execute (H_NegoControl_0.AutoMode)
to "GoDISABLED" (T0).
(2) Sets the host state monitor (H_NegoControl_0.HostState) to "DISABLED" (T0).
(3) Disables the disconnect detection function (T0).
(4) Waits for the current transaction to end, then sets the operating mode
(H_XcvrControl.OpMode[1:0]) to "PowerDown" (T1).
(5) Enables the disconnect detection function (T3).
(6) Issues disabled change completion status notification
(H_SIE_IntStat_1.DisabledCmp) to the firmware (T3).
T0 T1
DISABLED
Power Down
'J' State
'LS_J' State
LS Mode
Fig. 1-53 Disabled timing (LS mode)
T2
Device is suspended (LS Mode)
EPSON
S2R72V18 Technical Manual (Rev.1.00)
T3