5228-DS08-R datasheet(26/100 Pages) BOARDCOM

26 / 100 page

BCM5228

Data Sheet

7/12/04

Broa d c om Co rp o r a t i o n

Page 14

Hardware Signal Definition Table

Document

5228-DS09-405-R

LED

G03

SERIAL_EN

I/OPD

Serial LED Enable. Active high. Serial LED

mode is enabled if this pin is high and the LC-

SER_EN pin is low during power-on reset.

Serial LED mode and Low-Cost Serial LED

mode cannot be active at the same time.

For details, see “LED Modes” on page 29.

G02

LC_SER_EN

I/OPU

Low-Cost Serial LED Enable. Active high.

Low-Cost Serial LED mode is enabled if this

pin is high and SER_EN pin is high during

power-on reset. Low-Cost Serial LED mode

and Serial LED mode can not be active at the

same time.

For details, see “LED Modes” on page 29.

K02

SLED_DO/INTR#

OOD

Serial LED Data. Active low serial LED

data. This pin becomes serial LED data

output if SER_EN pin is high during power-

on reset. For details, see “LED

Modes” on page 29.

PHY Interrupt. Active low output. This pin

becomes interrupt output if SER_EN pin is low

during power-on reset.

F01

F02

E01

E02

P01

P02

N02

N01

TX_ER{1:8}

LED1{1:8}

I/OPD

TXER[1:8]. Active high input. This pin

becomes TXER input if TXER_EN pin is high

during power-on reset. TXER function is

typically used in HSTR application for

transmitting halt codes.

TXER[1:8] pins are sampled during power-on

reset to set the default LED output for LED1,

LED2 and LED3. For details, see “LED

Modes” on page 29.

LED1[1:8]. Active low output. This pin

becomes LED1 output if TXER_EN pin is low

during power-on reset. LED1 can be

configured to output one of LINK, SPEED,

ACTIVITY, FULL-DUPLEX, TRANSMIT,

RECEIVE, INTERRUPT or COLLISION

status. For details, see “LED

Modes” on page 29.

C04

E06

D05

C05

M07

N07

M06

N06

185

186

187

188

LED2{1:8}

OOD

LED2. Active low. This pin can be configured

to output one of SPEED, ACTIVITY, FULL-

DUPLEX, TRANSMIT, RECEIVE,

INTERRUPT, COLLISION, or LINK status.

For details, see “LED Modes” on page 29.

Table 2: Pin Definitions (Cont.)

BCM5228B BCM5228F BCM5228U Pin Label

I/O

Description

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