Lite Board Evaluation System Manual

Switch Settings
2-12 ADSP-21364 EZ-KIT Lite Evaluation System Manual
When position 6 is
ON, the values of the LEDs are set by writing to a mem-
ory location. The lower 8 bits of the data written to the address 0x1400
0000
set the values of the LEDs. By default, position 6 is ON. For more
information refer to “LEDs and Push Buttons” on page 1-10.
Boot Mode and Clock Ratio Select Switch (SW10)
The SW10 switch sets the boot mode and clock multiplier ratio. Table 2-4
shows how to set up the boot mode using
SW10 positions 1 and 2. By
default, the EZ-KIT Lite boots in parallel port mode from the flash
memory.
Table 2-5 shows how to set up the clock multiply ratio using SW10
positions 3 and 4. By default, the processor increases the clock multiply
ratio by six, setting the core clock to 147.456 MHz.
Table 2-4. Boot Mode Configuration (SW10)
BOOTCFG1 Pin (Position 2) BOOTCFG0 Pin (Position 1) Boot Mode
OFF OFF SPI slave boot
OFF ON SPI master boot
ON OFF Parallel flash boot (default)
ON
ON Internal boot
Table 2-5. Core Clock Rate Configuration (SW10)
CLKCFG1 (Position 4) CLKCFG0 (Position 3) Core to CLKIN Ratio
OFF OFF 6:1 (default)
OFF ON 32:1
ON OFF 16:1
ON
ON
NA