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| Semiconductor MSM7718EVA User Instructions GENERAL DESCRIPTION Version E1, Sep 25, 1996 This document describes how to set the MSM7718 evaluation kit for operation. The board is equipped with all circuitry necessary to drive the MSM7718 and helps the designer evaluate the LSI in each of its characteristics and functions. For details about device specification and functional description of MSM7718, please refer to the corresponding datasheet. HOW TO... 1. Evaluation Kit Content * One evaluation board (for 100-pin TQFP) * One power supply cable 2. Evaluation Board Circuity Diagram * Two circuit diagrams * A component layout diagram 3. How to Use the Board 3.1. Power Supply Power should be supplied to the board via the enclosed power supply cable. The yellow and yellow (white) cables are for 3V, the red one is for 5V, the blue one is for -5V, and the black one is for GND. 3.2. Oscillator U6 in Component Layout should be equipped with an oscilator either at 19.2MHz or 9.6MHz (MCK). U14 in Component Layout should be equipped with an oscilator at 4MHz (BCLK, EXCK). 3.3. Switches SW1 SW2 SW3 SW4 SW5 ON OFF ON OFF ON OFF ON OFF ON OFF : : : : : : : : : : to connect IS output and IR input to disconnect IS output and IR input. to connect PCMPCO out put and PCMLNI input to disconnect PCMPCO out put and PCMLNI input to connect PCMLNO out put and PCMPCI input to disconnect PCMLNO out put and PCMPCI input to connect PCMMACO out put and PCMADI input to disconnect PCMMACO out put and PCMADI input to connect PCMADO out put and PCMACI input to disconnect PCMADO out put and PCMACI input The information contained herein is subject to change without notice due to product and / or technical improvements Semiconductor SW6 SW7 SW8 SW9 SW10 SW11 SW12 SW13 SW14 SW15 SW16 SW17 SW18 SW19 SW20 SW21 SW22 SW23 SW24 SW25 MSM7718EVA A switch to alternate TSTI3 input signal A switch to alternate TSTI3 input signal A switch to alternate TSTI4 input signal PDNRST input signal switch. (The default is normally high. A switch to alternate TSTI2 input signal A switch to alternate TSTI1 input signal A switch for PDWN input signal switch . (The default is normally high. Only when this switch is pushed down, low level is given.) A switch to alternate VOXI input signal A switch to alternate MLV0 input signal A switch to alternate MLV1 input signal A switch to alternate MLV2 input signal A switch to alternate MUTE input signal A switch to alternate open/short with SYNCP A switch to alternate open/short with SYNCA A switch to alternate open/short with BCLKP A switch to alternate open/short with BCLKA A switch to alternate open/short with DEN A switch to alternate open/short with EXCK A switch to alternate open/short with DIN A switch to alternate open/short with DOUT When SW18 - SW25 are open, external input is possible. SW26-SW31 A switch for frequency to BCLKP and BCKA SW26 = 2MHz SW27 = 1MHz SW28 = 512KHz SW29 = 256KHz SW30 = 128KHz SW31 = 64KHz Switches for MCU interface SW32 A switch for settings for data write and data read. (R : Read / W : Write) SW33-SW37 A switch for settings for control register address (A4-A0) SW38-SW45 A data setting switch for writing into control registers. (D7-D0) SW46 After you set all with SW32-SW45, a push on this botton will transmit the data as set. When a reading si done, an LED light gets ON. SW32-SW46 3.4. 40-pin Flat Cable The board is equipped with a connector for a 40-pin flat cable to interface an external Flash ROM. The drawing below shows the correspondance with a 40- pin flat cable. Pin 39 Pin 40 3.5. 20-pin Flat Cable oooooooooooooooooooo Pin 1 oooooooooooooooooooo Pin 2 The board is equipped with a connector for 20-pin flat cable to interface an external MCU. The drawing below shows the correspondance with a 40-pin flat cable. Pin 19 Pin 20 oooooooooo oooooooooo Pin 1 Pin 2 Page 2 |
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