Analog Devices SHARC ADSP-21375, Руководство пользователя

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ADSP-21375 EZ-KIT Lite Evaluation System Manual 2-19
ADSP-21375 EZ-KIT Lite Hardware Reference
VCO Select Jumper (JP1)
The voltage-controlled oscillator (VCO) select jumper (
JP1
) configures
the frequency selection of the on-board external PLL (
U39
). When
JP1
is
installed, the VCO output frequency is multiplied by a factor of 1.0. Con-
versely, when uninstalled, the VCO output frequency is multiplied by a
factor of 0.5 or divided in half. The jumper settings are shown in
Table 2-10 .
ELVIS Select Jumper (JP2)
The ELVIS select jumper (
JP2
) configures the EZ-KIT Lite’s connection
to an ELVIS station (see “ELVIS Interface” on page 1-9 ). When
JP2
is
installed, the connections to the push buttons and LED are re-directed to
the ELVIS station instead of the processor. The jumper settings are shown
in
Table 2-11 .
Table 2-10. VCO Select Jumper (JP1)
JP1 Setting Mode
OFF VCO output frequency x ½ (default)
ON
VCO output frequency x 1.0
Table 2-11. ELVIS Select Jumper (JP2)
JP2 Setting Mode
OFF Not connected to an ELVIS station (default)
ON
Connected to an ELVIS station