STULPI01ATBR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STULPI01ATBR

High speed USB On-The-Go ULPI transceiver

STMicroelectronics 

STULPI01A - STULPI01B

ULPI registers

Table 20. USB interrupt enable rising register

0Dh-0Fh(Read), 0Dh(Write), 0Eh(Set), 0Fh(Clear)

(If set, the bits in this register cause an interrupt event notification to be generated when the

corresponding PHY signal changes from low to high. By default, all transitions are enabled. RxActive and

RxError must always be communicated immediately and so are not included in this register. Interrupt

circuitry can be powered down in any mode when both rising and falling edge enables are disabled. To

ensure interrupts are detectable when clock is powered down, the link should enable both rising and

falling edges.)

Field name

Bits Access Reset

Description

Host disconnect rise

VbusValid rise

0

rd/wr/s/c

1

rd/wr/s/c

Generates an interrupt event notification when host

1b

disconnect changes from low to high. Applicable only in

host mode (DpPulldown and DmPulldown both set to

1b).

1b

Generates an interrupt event notification when

VbusValid changes from low to high.

SessValid rise

SessEnd rise

2

rd/wr/s/c

3

rd/wr/s/c

Generate an interrupt event notification when SessValid

1b changes from low to high. SessValid is the same as

UTMI+ Avalid.

1b

Generates an interrupt event notification when SessEnd

changes from low to high.

ID rise

4

rd/wr/s/c

Generates an interrupt event notification when ID

1b

changes from low to high. ID is valid 50ms after IdPullup

is set to 1b, otherwise ID is undefined and should be

ignored.

Reserved

7:5 rd/wr/s/c

0b Reserved.

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