TE0320 is provided with 4 system DIP slide switches as shown in Figure 32: S1A, S1B, S1C, S1D.
Figure 32: DIP slide switches S1[A : D].
Please note the 4 switch labels are on one side and the <ON> label is on the opposite side.
DIP slide switches S1[A : D] condition the value of some system signals as described in Table 13.
switch | S1 label | signal name | <OFF> | <ON> |
|---|---|---|---|---|
S1A | 1 | EEPROM serial data | the USB FX2 microcontroller CANNOT read / write the serial EEPROM | the USB FX2 microcontroller can read / write the serial EEPROM |
S1B | 2 | M2 | mode pin M2 = 1 | M2 = 0 |
S1C | 3 | M1 | mode pin M1 = 1 | M1 = 0 |
S1D | 4 | /MR (master reset) | module reset | module running |
Table 13: S1X settings description.
DIP slide switch S1A
DIP slide switches S1A is ON by default, to allow the USB FX2 microcontroller to read the serial EEPROM and enumerate as a custom/specific USB device.
- When DIP slide switches S1A is ON, the USB FX2 microcontroller can (re)write the (old) serial EEPROM to, for example, store a (new) custom/specific firmware.
- When DIP slide 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.
DIP slide switches S1B and S1C
Mode pins M2 (S1B), M1 (S1C), M0 tell the FPGA how the bitstream will be loaded.
DIP slide switches S1D
If modular
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