CS8920 datasheet(45/66 Pages) CIRRUS

45 / 66 page

AN84REV1

CS8920 Technical Reference Manual

(NDIS 2X, ODI, NDIS 3X, etc.). Default is

DOS (single threaded OS).

Bit 10: Wakeup Capable

Indicates the adapter is capable of

supporting the Automatic Wakeup feature.

Default is not supported.

Bit 9: Wakeup Configured

Indicates the adapter is configured to

support Automatic Wakeup. (Reset block

of EEPROM contains proper information to

support Automatic Wakeup.) Default is

not configured for Automatic Wakeup.

Bit 8: Wakeup Enabled

Indicates the Automatic Wakeup feature is

enabled. Default is disabled.

Bit 7: DC to DC Converter Polarity

Refer to Section 2.2.2.9. (Must be

initialized by OEM before shipping

adapter.)

Bit 6-5: Media Type In Use

Indicates the type of media the driver

should use (10Base-T, AUI, 10Base-2) or if

driver should auto-detect media in use.

Default is auto-detect.

Bit 4: Reserved (set to 0)

Bit 3: Adapter Provides HW Standby

Circuitry

Indicates the presence of hardware standby

circuitry on the adapter. Refer to Section

3.7 of the CS8920 Data Sheet . (Must be

initialized by OEM before shipping

adapter.)

Bit 2: Adapter Provides 10Base-2

Circuitry

Indicates the presence of 10Base-2 circuitry

on the adapter. (Must be initialized by

OEM before shipping adapter.)

Bit 1: Adapter Provides AUI Circuitry

Indicates the presence of AUI circuitry on

the adapter.

(Must be initialized by OEM

before shipping adapter.)

Bit 0: Adapter Provides 10Base-T

Circuitry

Indicates the presence of 10Base-T

circuitry on the adapter.

(Must be

initialized by OEM before shipping

adapter.)

3.3.8 Manufacturing Date

This word is the adapter’s manufacture date

encoded in 16 bits, YR-MO-DY format.

(Must be initialized by OEM before

shipping adapter.)

Bits 15-9: Two Least-significant Digits of

Year

Seven bits for a range of 00 to 99 decimal.

A roll-over to 00 will be interpreted as the

year 2000.

Bits 8-5: Month

Four bits for a range of 01 to 12.

Bits 4-0 Day

Five bits for a range of 01 to 31.

3.3.9 IEEE Physical Address (copy)

This field is a copy of the three words at

address 1Ch to 1Eh. (Must be initialized

by OEM before shipping adapter.)

CS8920 Datasheet(PDF) 45 Page - Cirrus Logic

CS8920 Datasheet(HTML) 45 Page - Cirrus Logic

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