USB3290 datasheet(33/46 Pages) SMSC

No de pièce	USB3290

Description	Small Footprint Hi-Speed USB 2.0 Device PHY with UTMI Interface

PDF	46 Pages

Scroll/Zoom	100%

Fabricant	SMSC [SMSC Corporation]

Site Internet	http://www.smsc.com

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33 / 46 page

Small Footprint Hi-Speed USB 2.0 Device PHY with UTMI Interface

Datasheet

SMSC USB3290

Revision 1.5 (11-02-07)

DATASHEET

Notes:

T0 may occur to 4ms after HS Reset T0.

The SIE must assert the Chirp K for 66000 CLKOUT cycles to ensure a 1ms minimum duration.

Figure 8.3 HS Detection Handshake Timing Behavior (FS Mode)

Table 8.6 HS Detection Handshake Timing Values (FS Mode)

TIMING

PARAMETER

DESCRIPTION

VALUE

HS Handshake begins. DP pull-up enabled, HS

terminations disabled.

0 (reference)

Device enables HS Transceiver and asserts Chirp

K on the bus.

T0 < T1 < HS Reset T0 + 6.0ms

Device removes Chirp K from the bus. 1ms

minimum width.

T1 + 1.0 ms < T2 <

HS Reset T0 + 7.0ms

Earliest time when downstream facing port may

assert Chirp KJ sequence on the bus.

T2 < T3 < T2+100µs

Chirp not detected by the device. Device reverts to

FS default state and waits for end of reset.

T2 + 1.0ms < T4 <

T2 + 2.5ms

Earliest time at which host port may end reset

HS Reset T0 + 10ms

USB3290 Fiches technique(PDF) 33 Page - SMSC Corporation