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AR20441-11

AccessRunner™ ADSL Modem Device Set for PCI Applications

Conexant Systems 

AccessRunner

Pin Name

I/O

R_INTER_DATA

O

R_INTER_SUPER#

O

PCI CONTROLLER INTERFACE

D[15:0]

I/O

A[9:0]

I

WR#

I

RD#

I

CS#

I

IRQ[1:0]#

O

MISCELLANEOUS

RST#

I

MCLK

I

VXCO_CTRL

O

MON_OUT

O

MON_CLK

O

MON_DONE

O

DMCK_ALT

I

LTR

O

NTR

I/O

NTRCTL

I

TXSOC0

I

TXSOC1

I

RXSOC0

O

RXSOC1

O

PWR_DN

I

POWER AND GROUND

VDD

VDDcore

GND

VGG

Controller-less ADSL Modem Device Set for PCI Applications

Description

Receive Interleaved Data Bit Output

Clocked at BIT_CLOCK rate.

Receive Interleaved Data Bit Output Superframe Qualifier

PCI Controller Interface Data Bus

16-bit input/output bus to send/receive data to/from PCI controller.

PCI Controller Interface Address Bus

10-bit input bus to receive address from PCI controller.

Data Write Enable

Data Read Enable

Chip Select

Programmable Interrupts

Global Chip Reset

When low, puts chip into reset condition.

High-speed Master Clock

Connect to 35.328 MHz VCXO, which is 16 times the maximum Nyquist rate.

Oversampled VCXO analog control voltage

1-bit serial D/A output used for constellation monitoring

Serial Monitor Clock

Operates at 138 kHz.

New Symbol Constellation Qualifier

External 2x Clock

8 kHz Local Timing Reference

8 kHz Network Timing Reference

Network Timing Reference I/O Control

TC0 Block Transmit Start of Cell.

TC1 Block Transmit Start of Cell.

TC0 Block Receive Start of Cell

TC1 Block Receive Start of Cell

Power Down Control Pin

3.3V Power (I/O)

2.5V Power (Core)

Ground

I/O Clamp Power Supply (connect to 5 volt supply for 5 volt tolerance)

12

Conexant

Doc. No. 100394B

Proprietary Information

October 19, 1999

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