Analog Devices ADSP-21992 EZ-KIT LITE, Системное руководство

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System Architecture
3-10 ADSP-21992 EZ-KIT Lite Evaluation System Manual
Encoder Interface Unit Circuitry
The ADSP-21992 EZ-KIT Lite board allows you to apply differential
encoder signals to the board at the encoder interface connector (
P6
). A dif-
ferential line receiver (
A8
) is provided to convert the differential encoder
signals to single-ended signals for the EIU inputs of the ADSP-21992.
Three jumpers (
JP28
,
JP29
,
JP30
) are provided to enable this encoder
interface circuitry. It is also possible to apply encoder signals directly to
the encoder interface of the ADSP-21992 at these jumpers when they are
open.
JTAG Emulation Port
The JTAG emulation port allows an emulator to access the DSP’s internal
and external memory, as well as the special function registers. Refer to
“JTAG Connector” on page 3-26 for information about the JTAG con-
nector. To learn more about available emulators, contact Analog Devices.