Akura AV26720-HD2 Especificaciones descargar pdf (Pagina 41)

Spectrum Digital, Inc

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2.10.10 JP9, DSP Core Voltage Select

Jumper JP9 is used to control the voltage to the core of the C54x DSP. If you are not

sure of the core voltage refer to a data sheet prior to changing this jumper. The table

below shows the setting and the corresponding voltages.

This jumper is set to the appropriate position before shipment.

* resistor values set differently at factory for VC5416.

2.10.11 JP10, Ready Routing

READY to the C54XX device from the GAL U20 can be deactivated if necessary. Of

course this prevents use of the onboard UART. In normal mode (position 1-2) external

READY from the I/O connector is routed through GAL U20. When JP10 is in the 2-3

position the READY signal is routed directly from the expansion connector to the

C54XX device. The table below shows the positions and their functions:

Table 25: JP9, DSP Core Voltage Select

Position Core Voltage Device JP12

1-2 3.3 Volts LC548, LC549 Not installed

2-3 2.5 Volts VC549,VC5410 Not installed

2-3 1.8 Volts VC5402,VC5409,VC5416 Installed

2-3* 1.5 Volts VC5416 Not Installed

Table 26: JP10, READY Routing

JP5 Position Function

1-2 READY from GAL U20

2-3 READY directly from I/O expansion connector

WARNING!

Setting this jumper incorrectly

can damage to the DSP device

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Akura AV26720-HD2 Especificaciones Pagina 41