Philips Semiconductors

Product specification

PDIUSBH11

Universal Serial Bus Hub

1997 Aug 01

16

Host Requests

SetFeature PORT_RESET

Reinitialize the embedded function and set the Reset Change bit to indicate that the reset has completed. Reset the Enable Status bit, enable

the embedded function and set its address to 0 by the Set embedded function Address / Enable command. Disable the embedded function

interrupt endpoint by the Set Endpoint Enable command.

SetFeature PORT_ENABLE

Enable the function by the Set embedded function Address / Enable command. Set the Enable Status bit.

SetFeature PORT_SUSPEND

Disable the function by the Set embedded function Address / Enable command. Reset the Enable Status bit and set the Suspend Status bit.

ClearFeature PORT_ENABLE

Disable the function by the Set embedded function Address / Enable command. Reset the Enable Status bit.

ClearFeature PORT_SUSPEND

Enable the function by the Set embedded function Address / Enable command. Set the Enable Status bit, reset the Suspend Status bit; set the

Resume Status Change bit to indicate that the resume has completed.

ClearFeature any Change Indicator

Clear the corresponding status change bit.

Babbling Condition

When the embedded function causes a babbling condition, the function is automatically disabled by the PDIUSBH11. As soon as the micro

controller detects the babbling error, it must set the Enable Status Change bit and reset the Enable Status bit.

Remote WakeUp

There are three scenarios a remote wakeup can occur. The following describes the course of actions for each of the cases:

1. The device is not suspended and the embedded port is suspended

– Enable back the function by setting the enable bit in the Set Address/Enable register and update the following status bits in the

micro–controller program: reset the Suspend Status bit, set the Enable Status bit and set the Suspend Status Change bit.

2. The device is suspended and the embedded port is suspended.

– Send an upstream Resume using the Send Resume command, enable back the function by setting the enable bit in the Set

Address/Enable register and update the following status bits in the micro–controller program: reset the Suspend Status bit, set the Enable

Status bit and set the Suspend Status Change bit.

3. The device is suspended and the embedded port is enabled

– Send an upstream resume using the Send Resume command

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

CONDITIONS

LIMITS

UNIT

SYMBOL

PARAMETER

CONDITIONS

MIN

MAX

UNIT

MIN.

MAX.

DC supply voltage

3.0

3.6

V

DC Input voltage range

0

5.5

V

DC input range for I/O

0

5.5

V

DC input range for analog I/O

0

V

DC output voltage range

0

V

Operating ambient temperature range in

free air

See DC and AC characteristics

per device

0

+70

°C