AC104Z datasheet(39/66 Pages) BOARDCOM

39 / 66 page

Data Sheet

AC104Z

9/9/02

Br oad c om

Document

AC104Z-DS03-405-R

Registers

Page 29

Table 27: Operation Mode Register (Register 23)

Bit

Name

Description

Mode

Default

23.15

FEF Enable

1 = Enable FEF function.

FEF function is enabled only when this register and FX_EN

are set.

23.14

FX SEL

1 = Set the port to operate in FX mode.

The port is operated in FX mode only when auto-negotiation

is disabled, and speed is set to 100 Mbps.

The FX_MODE sets the default to auto-negotiation disable.

a. Refer to Table 29: “Mode Table,” on page 30.

23.13

Reserved

23.12

SD Cmsel

1 = Select single ended input for FX SD signal

23.11

Scramble Disable

1 = Disable scrambler.

0 = Enable scrambler.

23.[10:8]

Reserved

000

23.7

Reserved

23.6

Reserved

23.[5:0]

Reserved

XXXXXX

23.15

FEF Enable

1 = Enable FEF function.

FEF function is enabled only when this register and FX_EN

are set.

Table 28: CRC for Recent Received Packet Register (Register 24)

Bit

Name

Description

Mode

Default

24.[15:0]

CRC 16

For system link testing.

0000(H)

AC104Z Datasheet(PDF) 39 Page - Broadcom Corporation.

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