User`s manual

AMBE-3000™-HDK Development Board

User’s Manual Version 1.1

Section 2 –

Page 11

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Connectors, Test Points & Indicators

Table 5 JP5 Serial Test Points

JP7 Handset Analog Audio I/O Test Points

Handset I/O Test Points

Pin # Signal Description

1 Connected to Ground

2 Analog Out P1

3 Speaker Out

4 Microphone In/DC Microphone Bias out

Table 6 Header I/O Test Points

JP8 Header

Pins Signal Signal Description

2, 3, 4, 6, 7, 8

Not Used

Table 7 JP8 Serial Data

Header Connections

HDK Board Header Connections

Item Header # of Pins Description

JP3 Header 7x2 Reserved

JP10 Header 7x2 JTAG Connection for the µ controller

Table 8 Header Connections

JP10 Header µController JTAG

The MSP430 JTAG connector is 2x7 pins with 0.1" step that follows the TI recommended JTAG layout.

PIN1 is marked with square pad on bottom. MSP430-JTAG has built-in target board voltage follower

and the JTAG voltage levels follow the MSP430 target board voltage, so the target may be powered

with voltage between 2.7 and 3.6 V (if the target voltage is under 2.7V Flash memory cannot be

programmed).

More information on the MSP430 JTAG can be found on Texas Instruments web site www.ti.com

Test points allow the user to access the data to and from the AMBE-3000™ Vocoder Chip. By

connecting to these test points the user can monitor the data flow and to understand the operation of

the chip. For more detailed explanation of the I/O signal, refer to the AMBE-3000™ Vocoder Chip

Users manual.