Analog Devices 82-0000603-01 Expansion Interface, Connector Interfaces, Jtag Emulation Port

4.2.3Expansion Interface

The expansion interface consists of the footprints for 3 connectors. The following table shows the interfaces each connector provides. For the exact pin-out of these connectors refer to APPENDIX B: SCHEMATIC. Analog Devices does not populate these connectors or provide any additional support for this interface. The mechanical locations of these connectors can be found in section 4.6.3.

Table 4-1: Connector Interfaces

Connector	Interfaces
P1	5V, GND, Address, Data
P2	3.3V, GND, EBUI control signals, PF0-15, SPI0-1, SPORT1,
	UART0-1, TMR0-2, NMI
P3	1.5V, GND, Reset, USB, CLKOUT, SLEEP

Limits to the current and to the interface speed must be taken into consideration if you use this interface. The maximum current limit is dependent on the regulator used and its capabilities. Additional circuitry can also add extra loading to signals, decreasing their maximum effective speed.

!Analog Devices does not support and is not responsible for the effects of additional circuitry.

4.2.4JTAG Emulation Port

The JTAG emulation port allows an emulator to access the DSP’s internal and external memory through a 6-pin interface. The JTAG emulation port of the DSP is also connected to the USB debugging interface (NOTE: This is not the DSP’s USB interface). When an emulator is connected to the board at P8, the USB debugging interface is disabled. See section 4.5.5 for more information about the JTAG connector.

To learn more about available emulators, contact Analog Devices (see section 1.1).

ADSP-21535 EZ-KIT Lite Evaluation System Manual 4-4