USB3450 datasheet(32/40 Pages) SMSC

部品番号	USB3450

部品情報	HI-SPEED USB HOST OR DEVICE PHY WITH UTMIINTERFACE

PDF	40 Pages

Scroll/Zoom	100%

メーカー	SMSC [SMSC Corporation]

ホームページ	http://www.smsc.com

Logo

32 / 40 page

Hi-Speed USB Host or Device PHY With UTMI+ Interface

Datasheet

Revision 0.1 (05-11-05)

SMSC USB3450

DATASHEET

Notes:

■

T0 may occur to 4ms after HS Reset T0.

■

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

Figure 7.3 HS Detection Handshake Timing Behavior (FS Mode)

Table 7.6 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

USB3450 データシート(PDF) 32 Page - SMSC Corporation

USB3450 データシート(HTML) 32 Page - SMSC Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

データシートダウンロード