MC145576EVK - Motorola / Freescale Semiconductor

MOTOROLA

SEMICONDUCTOR

TECHNICAL DATA

MC145576EVK

Advance Information

ISDN Single chip NT1 Transceiver

Evaluation Kit

This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without

notice.

MOTOROLA INC., 1998 Rev 1.1

FLINT

MC145576

IDL

SCP

FPGA

HC11

SCP

MC145576DR

MC145576EV

RS23

MC145576EVK

I. Introduction

The MC145576EVK board has been designed to demonstrate and evaluate the Motorola

single chip NT1 solution based on the FLINT (MC145576).

The MC145576 is configured by default to work in a standard NT1 mode (see section III),

this configuration can be changed to provide a terminal access to the MC145576 which is

required for the SMART NT1 applications (see section IV). This terminal access can be

IDL/SCP or GCI.

The MC145576EVK board is powered by an external 5V power supply, there is no power

feeding circuitry which recovers the power from the U line. Another connector can be used to

provide +40V power supply down to the TE through the S/T line (+40V and +5V power

supplies have separated grounds).

II. MC145576EVK Block Diagram

MC145576

FLINT

Line Interface

DB25

Digital Bus

Switchs

S/T Loop U Loop

Leds

III. MC145576 in NT1 mode

In the NT1 mode, as there is no terminal access required and where the minimum possible

power consumption is desired, the MC145576 will provide a U and S/T analog interfaces and

some configuration and indication pins.

Switchs configuration:

CLK_SEL no function

ENO_L OFF (logic high)

LED2 ON

LED1 ON

CLASS/ECHOIN no function

FIX OFF Fix mode, ON Adaptative mode

IDL/GCI ON (GCI mode)

DRQ_AR OFF see note

PS1 OFF PS1=1, ON PS1=0

PS2 OFF PS2=1, ON PS2=0

Pulse 1 OFF /Pulse1=1, ON /Pulse1=0

Pulse 2 OFF /Pulse2=1, ON /Pulse2=0

Note: If Activation Request DRQ_AR need to be used, ENO_L should be switch ON.

IV. FLINT in Smart NT1 mode

In the Smart NT1 mode, the terminal access is required. This terminal access, plus some

control and indication signals, are available on a DB25 connector (P1).

Switchs configuration:

CLK_SEL OFF 2.048 MHz , ON 512 KHz

ENO_L ON (logic low)

LED2 depending on the mode selected

LED1 depending on the mode selected

CLASS/ECHOIN depending on the mode selected

FIX OFF Fix mode, ON Adaptative mode

IDL/GCI OFF IDL/SCP mode, ON GCI mode

DRQ_AR depending on the mode selected

PS1 depending on the mode selected

PS2 depending on the mode selected

Pulse 1 depending on the mode selected

Pulse 2 depending on the mode selected

Note: OFF applies a logic high, ON applies a logic low.

Motorola has designed a board (based on the HC11 and a FPGA) and software (on PC)

which can be directly connected to the MC145576EVK board. This board (MC145576DRV)

which works only in IDL/SCP mode, provides quick access to the internal registers and gated

clocks.

V. Getting Started

Jumpers configuration:

JP8: jumper to short circuit the C13 capacitor.

JP9: jumper to terminate the S/T loop transmit path with an 100 Ohms resistor.

JP10: jumper to terminate the S/T loop receive path with an 100 Ohms resistor.

Getting Started

Configure the MC145576 according the mode choosen, then switch on the +5V power

supply and reset the MC145576. The board is ready.

VI. Reference Manuals

* MC145576 FLINT User’s Manual (MC145576/D).

* MC145574 S/T Interface User’s Manual (MC145574/D).

* MC145572 U Interface User’s Manual (MC145572/D).

* CCITT I.430 Specification.

* ETSI ETR 300 012 Specification.

* ETSI ETR 080 Specification.

* GCI Interface document writen by Alcatel, Italtel, GPT and Siemens.

VII. MC145576EVK Layout

Top Layer

Bottom Layer

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incidental damages. “Typical” parameters can and do vary in different applications and actual performance may vary over time. All operating

parameters, including “Typicals”, must be validated for each customer application by customer’s technical experts. Motorola does not

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even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered

trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.

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MC145576EVK/D