LAN9500AI datasheet(37/213 Pages) MICROCHIP

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DS00001875A-page 37

LAN950x

5.3.2

USB STANDARD COMMANDS

This section lists the formats of the supported USB Standard Commands. The Set Descriptor, Set Interface, and Synch

Frame commands are not supported.

5.3.2.1

Clear Feature

This command clears the Stall status of the targeted endpoint or the device remote wakeup.

Note 5-15

Set to 00h to clear device remote wakeup event. Set to 02h to clear the endpoint stall status.

Note 5-16

When the bmRequestType field specifies an endpoint, the wIndex field selects the endpoint (0, 1, 2,

or 3) targeted by the command.

5.3.2.2

Get Configuration

TX Good Frames

Number of successfully transmitted TX frames.

Note:

Does not count pause frames.

TX Pause Frames

Number of successfully transmitted pause frames.

TX Single Collisions

Number of successfully transmitted frames with one collision.

TX Multiple Collisions

Number of successfully transmitted frames with more than one collision.

TX Excessive Collision Errors

Number of transmitted frames aborted due to excessive collisions.

TX Late Collision Errors

Number of transmitted frames aborted due to late collisions.

TX Buffer Underrun Errors

Number of transmitted frames aborted due to Tx buffer under run.

TX Excessive Deferral Errors

Number of transmitted frames aborted due to excessive deferrals.

TX Carrier Errors

Number of frames transmitted in which the carrier signal was lost or in

which the carrier signal was not present.

TX Bad Frames

Total number of errored Ethernet frames transmitted.

TABLE 5-15:

FORMAT OF CLEAR FEATURE SETUP STAGE

Offset

Field

Value

bmRequestType

Note 5-15

bRequest

01h

wValue

Selects feature to clear.

wIndex

Note 5-16

wLength

00h

TABLE 5-16:

FORMAT OF CLEAR FEATURE SETUP STAGE

Offset

Field

Value

bmRequestType

80h

bRequest

08h

wValue

00h

wIndex

00h

wLength

01h

TABLE 5-14:

STATISTICS COUNTERS (CONTINUED)

Name

Description

Size

(Bits)

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