STULPI01ATBR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STULPI01ATBR

High speed USB On-The-Go ULPI transceiver

STMicroelectronics 

STULPI01A - STULPI01B

Block description

6.18.7

Figure 8.

High speed mode entry

In high speed mode, the internal 480 MHz clock is generated by the DLL, which must be

calibrated any time device enters high speed mode by writing '00' to the XcvrSel field in the

Function Control register. During the DLL calibration it is not possible to accept any

commands, therefore to avoid any communication problems with the controller the clock on

the ULPI interface is stopped. See Figure 10 for more information.

Start-up sequence

Figure 9. RESETn behavior

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