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Organized by modules

S1: 4 x DIP slide switches (system/user)
- S1[A]Â Â Â : 1 x DIP slide switches (system)
- S1[B] : 1 x DIP slide switches (system)
- S1[C:D] : 2 x DIP slide switches (system)

EEPROM enabled: a connection between EEPROM and USB FX2 microcontroller exists.

EEPROM disabled: a connection between EEPROM and USB FX2 microcontroller doesn't exist.

EEPROM switch:

For all the switches above EEPROM is enabled when the switch is ON and the EEPROM is disabled when the switch is OFF.

EEPROM switch is ON by default, to allow the USB FX2 microcontroller to read the serial EEPROM and enumerate as a custom/specific USB device.

When EEPROM switch is ON, the USB FX2 microcontroller can (re)write the (old) serial EEPROM to, for example, store a (new) custom/specific firmware.
When EEPROM switch is OFF, the USB FX2 microcontroller cannot read the serial EEPROM and enumerates as a Cypress USB generic driver. It is used for boot recovery.

Power Rails Configuration:

Master Reset (aka Reset Line):

FPGA Configuration selection (Mode Pins):

TE0300: two mode selection pin are hardwired (they do not exist as switches), only one exist as a switch: S4 (SPI+Jtag or only JTAG).
TE0320: S1[B:C], more information here.
TE0630: all mode selection pins are hardwired (they do not exist as switches).