RH56D-PCI Ver la hoja de datos (PDF) - Conexant Systems

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componentes Descripción

Fabricante

RH56D-PCI

Host Controlled V.90/K56flex™ Modem Device Family for Desktop Applications

Conexant Systems 

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Hardware Interface

The major functional interface signals are shown in Figure

2.

The R6795 144-pin TQFP hardware interface signals are

shown in Figure 3.

The R6795 144-pin TQFP pin signals are shown in Figure

4.

A schematic showing the R6795 interface for a typical

application (data/fax) is shown in Figure 5.

Package Dimensions

The package dimensions for the 144-pin TQFP are shown

in Figure 6.

Power Requirements

The current and power requirements are listed in Table 2.

Absolute Maximum Ratings

The absolute maximum ratings are listed in Table 3.

Additional Information

Additional information is described in the RH56D-PCI

Designer’s Guide (Order No. 1213) and in the Command

Reference Manual (Order No. 1118).

28.224 MHZ

CRYSTAL

CIRCUIT

XIN

XOUT

VIO

PCICLK

PCIRESET#

FRAME#

IDSEL

DEVSEL#

IRDY#

TRDY#

PAR

REQ#

PCI

GNT#

BUS

INTA#

STOP#

PERR#

SERR#

CBE0#

CBE1#

CBE2#

CBE3#

AD[31:0]

PME#

VauxDET

POWER

DETECTION

AND

SWITCHING

CIRCUIT

+3.3V (VDD)

+3.3VA OR +5VA

GND

AGND

VpciEN#

VauxEN#

VpciDET

VDD

AVDD

GND

AGND

RH56D-PCI

SINGLE DEVICE

MODEM

[R6795: 144-PIN TQFP]

OH# (GPIO0)

CID# (GPIO1)

VOICE# (GPIO2)

LCS# (INPUT2)

IRING# (INPUT3)

EXT_L# (INPUT4)

LCS_L#/RH_L# (INPUT5)

RXA

TXA1

TXA2

TELIN*

TELOUT*

DSPKOUT

SPKOUT*

MIC_V*

SPKMUTE (GPIO8)

SROMCLK

SROMCS

SROMOUT

SROMIN

* SP MODEL ONLY.

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DAA AND

TELEPHONE

INTERFACE

AUDIO

INTERFACE

256 x 16

OR

128 X 16

SERIAL

EEPROM

MD239F2 R6795 SI

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