Digital Voice Systems AMBE-20X0 HDK, Руководство пользователя

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AMBE-2x0™-HDK Development Board
User’s Manual
(Preliminary)
Page 11
DVSI Confidential Proprietary
Section 2 – Connectors, Test Points & Indicators
Figure 6 Photo of JTAG Connections
PLD JTAG Interface
JTAG operation for the XC9572XL consists of four signals: TMS, TDI, TDO, and TCK. These signals
interact with the device through the TAP Controller, a 16-state finite state machine. The JTAG TMS
signal controls transitions between states. Instructions and data are shifted into the device on the TDI pin
and are shifted out on the TDO pin. All state transitions and activity on the TDI and TDO signals are
synchronous to TCK
More information on the XC9572Xl JTAG can be found on Xilinx web site www.xilinx.com
Header (JP7)
Pins Signal
1 GND
2 VCC
3 GND
4 TMS
5 GND
6 TCK
7 GND
8 TDO
9 GND
10 TDI
Table 7 PLD JTAG Pin out
Test Points
Test points allow the user to access the data to and from the AMBE-2000™. By monitoring the data flow
users can better understand the operation of this chip. For more detailed explanation of the I/O signal,
refer to the AMBE-2000™ Vocoder Chip Users manual.
MSP430 JTAG
XC9572 JTAG