Texas Instruments Delfino TMS320F28377D controlCARD Information Manual page 9

Switches (default position in BOLD)
SW1
SW2
SW3
Boot Mode Switch:
Controls the Boot Options of the F2837x device. See the device
datasheet for more information. (0 is down, 1 is up)
Mode # Switch
Position 1
(GPIO-72)
00 0
01 0
02 0
03 1
External VREFHI Disable Switches for ADC:
This switch determines which ADC voltage reference (VREFHI) inputs will
be connected to external references.
Each Switch (leftmost switch is for ADC-A, rightmost is for ADC-D, etc):

In the down position, the external reference to the ADC will be
disabled. This configuration should not be used.

In the up position, the respective ADC will be configured to use
an external voltage reference chosen by SW3 or SW4.
ADC VREFHI Control Switch for ADC modules A & B:
Switch 1 (lower switch) – VREFHI Control Switch for ADC module A:

In the left position – If ADC-A is configured to use an external
reference via SW2, the ADC will be referenced to the alternate
reference chosen by R42/R43 (see above).

In the right position
reference via SW2, the ADC will be referenced to a precise 3.3V
reference located on the controlCARD.
Switch 2 (upper switch) – VREFHI Control Switch for ADC module B:

In the left position – If ADC-B is configured to use an external
reference via SW2, the ADC will be referenced to the alternate
reference chosen by R42/R43 (see above).

In the right position
reference via SW2, the ADC will be referenced to a precise 3.3V
reference located on the controlCARD.
Switch Boot from
Position 2
(GPIO-84)
0 Parallel I/O
0 Boot from SCI
1 Wait Boot Mode
1 Get Mode (Flash by default)
– If ADC-A is configured to use an external
– If ADC-B is configured to use an external
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