Rainbow-electronics W90P710CDG Bedienungsanleitung PDF herunterladen (Seite 175)

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W90P710CD/W90P710CDG

Publication Release Date: September 19, 2006

- 175 - Revision B2

BITS DESCRIPTION

[31:11] Reserved

Reserved. Read/Write 0's

[10]

RWCE

RemoteWakeupConnectedEnable

If a remote wakeup signal is supported, this bit enables that operation.

Since there is no remote wakeup signal supported, this bit is ignored.

[9] RWC

RemoteWakeupConnected

This bit indicated whether the HC supports a remote wakeup signal. This

implementation does not support any such signal. The bit is hard-coded to

‘0.’

[8]

INR

InterruptRouting

This bit is used for interrupt routing:

0: Interrupts routed to normal interrupt mechanism (INT).

1: Interrupts routed to SMI.

[7:6] HCFS

HostControllerFunctionalState

This field sets the Host Controller state. The Controller may force a state

change from USB

SUSPEND to USB RESUME after detecting resume

signaling from a downstream port. States are:

00: USB

RESET

01: U

SBRESUME

10: U

SBOPERATIONAL

11: U

SBSUSPEND

[5]

BLE

BulkListEnable

When set this bit enables processing of the Bulk list.

[4]

CLE

Control Listenable

When set this bit enables processing of the Control list.

[3]

ISE

Isochronous Enable

When clear, this bit disables the Isochronous List when the Periodic List is

enabled (so Interrupt EDs may be serviced). While processing the

Periodic List, the Host Controller will check this bit when it finds an

isochronous ED.

[2] PLE

Periodic Listenable

When set, this bit enables processing of the Periodic (interrupt and

isochronous) list. The Host Controller checks this bit prior to attempting

any periodic transfers in a frame.

[1:0]

CBR

ControlBulkServiceRatio

Specifies the number of Control Endpoints serviced for every Bulk

Endpoint. Encoding is N-1 where N is the number of Control Endpoints

(i.e. ‘00’ = 1 Control Endpoint; ‘11’ = 3 Control Endpoints)

1 2 ... 170 171 172 173 174 175 176 177 178 179 180 ... 551 552

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