Debug LEDs
Technical Summary
2-5
2.3 Clock Source
The DSP56F801EVM uses an 8.00MHz crystal, Y1, connected to its External Crystal
Inputs, EXTAL and XTAL. The DSP56F801 uses its internal PLL to multiply the input
frequency by 10, to achieve its 80MHz maximum operating frequency. An external
oscillator source can be connected to the DSP by using the oscillator bypass connector,
JG7 and JG8; see
Figure 2-2. Block Diagram of the Clock Interface
2.4 Debug LEDs
One on-board Light-Emitting Diode (LED) is provided to allow real-time debugging for
user programs. This LED allows the programmer to monitor program execution without
having to stop the program during debugging; refer to
. This user LED,
designated LED7, is controlled by the MOSI signal. Setting the MOSI to a Logic One
value will turn on the LED.
Figure 2-3. Block Diagram of the Debug LED Interface
DSP56F801
EXTERNAL
OSCILLATOR
HEADERS
JG7
1
2
3
1
2
EXTAL
XTAL
JG8
10M
8.00MHz
DSP56F801
INVERTING BUFFER
MOSI
GREEN LED
+3.3V
Содержание DSP56F801
Страница 2: ......
Страница 6: ...iv DSP56F801EVM Hardware User s Manual ...
Страница 8: ...vi DSP56F801EVM Hardware User s Manual ...
Страница 12: ...x DSP56F801EVM Hardware User s Manual ...
Страница 37: ... DSP56F801EVM Schematics A 1 Appendix A DSP56F801EVM Schematics ...
Страница 52: ...B 4 DSP56F801EVM Hardware User s Manual ...
Страница 55: ......