GT3200-JD SMSC [SMSC Corporation], GT3200-JD Datasheet - Page 39
![no-image](/images/no-image-200.jpg)
GT3200-JD
Manufacturer Part Number
GT3200-JD
Description
USB2.0 PHY IC
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.GT3200-JD.pdf
(48 pages)
- Current page: 39 of 48
- Download datasheet (2Mb)
USB2.0 PHY IC
Datasheet
SMSC GT3200, SMSC USB3250
PARAMETER
XCVRSELECT
TERMSELECT
TIMING
OPMODE 0
OPMODE 1
T0
T1
T2
T3
T4
T5
T6
T7
T8
TXVALID
DP/DM
time
Figure 8.5 HS Detection Handshake Timing Behavior (HS Mode)
HS Handshake begins. DP pull-up enabled, HS
terminations disabled.
Device asserts Chirp K on the bus.
Device removes Chirp K from the bus. 1 ms minimum
width.
Downstream facing port asserts Chirp K on the bus.
Downstream facing port toggles Chirp K to Chirp J on
the bus.
Downstream facing port toggles Chirp J to Chirp K on
the bus.
Device detects downstream port chirp.
Chirp detected by the device. Device removes DP
pull-up and asserts HS terminations, reverts to HS
default state and waits for end of reset.
Terminate host port Chirp K-J sequence (Repeating
T4 and T5)
T0
T1
Chirp K
Device
Device
Chirp
Port
Table 8.7 Reset Timing Values
DESCRIPTION
T2
T3
K
T4 T5
DATASHEET
J
K
Downstream Facing
J
39
Port Chirps
K
J
T6 T7
0 (reference)
T0 < T1 < HS Reset T0 + 6.0ms
T0 + 1.0ms < T2 < HS Reset T0 +
7.0ms
T2 < T3 < T2+100µs
T3 + 40µs < T4 < T3 + 60µs
T4 + 40µs < T5 < T4 + 60µs
T6
T6 < T7 < T6 + 500µs
T9 - 500µs < T8 < T9 - 100µs
HS Mode
VALUE
K
Revision 1.5 (03-24-06)
J
T8
SE0
T9
SOF
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