Analog Devices EZ-KIT LITE ADSP-2191, Manual

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ADSP-2191 EZ-KIT Lite Evaluation System Manual 3-9
EZ-KIT Lite Hardware Reference
Boot Mode Select Switch (JP6)
The boot mode select switch determines how the processor boots.
Table 3-3 shows the jumper settings for the boot modes.
Bypass Mode Select Switch (JP7)
When the bypass mode jumper is not installed, the processor’s core clock and
the input clock (CLKIN) run at the same speed. The evaluation board ships
with a 16-MHz oscillator. When
JP7
is removed, the core runs at 16 MHz.
!
When you use Vi+ to debug the processor, the core clock
must run at a minimum of 24 MHz. The processor cannot be
debugged in bypass mode.
When the jumper is installed, the configuration of
SW4
at reset determines the
core clock speed.
Table 3-3. Boot Mode Select Jumper (JP6) Settings
OPMODE
Pins 1 and 2 BMODE1
Pins 3 and 4 BMODE0
Pins 5 and 6 Function
Installed Installed Installed Execute from 16-bit external memory (no boot).
Installed Installed Not Installed Boot from EPROM
Installed Not Installed Installed Boot from Host (Default)
Installed Not Installed Not Installed Reserved
Not Installed Installed Installed Executed from 8-bit external memory (no boot)
Not Installed Installed Not Installed Boot from UART
Not Installed Not Installed Installed Boot from SPI, up to 4K bits
Not Installed Not Installed Not Installed Boot from SPI, >4K bits, up to 512K bits