LAN9250 datasheet(60/421 Pages) MICROCHIP

60 / 421 page

LAN9250

DS00001913A-page 60

 2015 Microchip Technology Inc.

HBI_data_mode_strap[1:0]

HBI Data Mode Straps:

Configures the data width of the

HBI interface.

00 = 8-bit

01 = 16-bit

1X = RESERVED

The data mode results from the following mapping:

Note:

Effectively, the data mode is determined by

MNGT2 in multiplexed mode and by MNGT0 in

non-multiplexed indexed mode.

See Table 7-3 for the combined host interface strapping.

Note:

Refer to Section 2.0, "General Description," on

page 8 for additional information on the various

modes of the device.

MNGT2 :

MNGT1 :

MNGT0

fx_mode_strap_1

PHY FX Mode Strap:

Selects FX mode for the PHY.

This strap is set high when FXLOSEN is above 1 V (typ.) or

FXSDENA is above 1 V (typ.).

FXLOSEN :

FXSDENA

fx_los_strap_1

PHY FX-LOS Select Strap:

Selects Loss of Signal mode for

the PHY.

This strap is set high when FXLOSEN is above 1 V (typ.).

FXLOSEN

TABLE 7-2:

HARD-STRAP CONFIGURATION STRAP DEFINITIONS (CONTINUED)

Strap Name

Description

Pins

MNGT2 : MNGT1 :

MNGT0

HBI_data_mode_strap

X00 (SPI)

reserved

001 (HBI multiplexed)

00 (8-bit)

101 (HBI multiplexed)

01 (16-bit)

X10 (HBI non-multi-

plexed indexed)

00 (8-bit)

X11 (HBI non-multi-

plexed indexed)

01 (16-bit)

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