AC104X-DS00-R datasheet(35/50 Pages) BOARDCOM

35 / 50 page

Preliminary Data Sheet

■ AC104X

12/11/01

B roa dcom Co rpo rat ion

Document

AC104X-DS00-405-R

Section 3: Register Descriptions

Page 27

Table 29:

Common Register 0: Common Operation Mode (Map to Phy Channel A, Reg 28)

Bit

Name

Description

Mode

Default

a.28.[15:5]

Reserved

000H

a.28.4

Rmii_enable

1 = Put the chip in shared RMII mode.

The MODE1 pin should be pulled down and the

MODE0 pin should be pulled high for the default

configuration.

a.28.3

Interrupt Level

1 = Interrupt active high.

0 = Interrupt active low.

a.28.2

Act Select

Act Event selector.

1 = TX or RX activity.

0 = Receive activity.

a.28.1

Reserved

a.28.0

Reserved

Table 30:

Common Register 1: Test Mode (Map to Phy Channel A, Reg 29)

Bit

Name

Description

Mode

Default

a.29.15

Reserved

a.29.[14:10]

Reserved

00010

a.29.[9:8]

Test Channel

Channel to be tested.

a.29.[7:4]

Test mode

0000 = normal operation.

0000

a.29.3

Burn In

1 = Enable Burn In Test mode.

0 = Normal Operation.

Reset by the

BURN_IN pin

a.29.2

Output Disable

1 = Disable all digital outputs.

0 = Normal operation.

a.29.1

Global phy addr

enable

1 = Write to phy addr 0 will write to all 4 phys on

the chip.

0 = Normal operation.

a.29.0

Reduce timer

1 = Reduce timer for auto-negotiation testing.

AC104X-DS00-R Datasheet(PDF) 35 Page - Broadcom Corporation.

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