User's Manual

DRAFT
5: Evaluation tools
Boot selection switch S2003 is located at bottom side of PWB available only with pin tool via small
hole in mechanics. This button is used to make VAM-CM to boot from USB device to start firmware
upgrade tool or enable direct USB flashing. Boot selection is required during R&D phase firmware
updates.
VAM-CM control buttons are shown in Table 16 .
SW Control Description
S1001 PWR on/off Power on/off switching of VAM-CM.
S1002 Modem RST Warm reset for VAM-CM.
S2003 USB Boot SW Boot selection switch
Table 16. Evaluation module control buttons
5 way switch block S1000 allowing user to set-up and control the VAM-CM operation. Order of
switches in switch block is represented in Figure 19 . Functions of included VAM-CM controls are
shown in Table 17 .
Figure 19. Function order in control selector switch block
SW Control Description
#1 VAM Boot 1 Control interface selection during VAM-CM power-up.
"UP" – UART control active (default).
"DOWN" – USB control active
#2 Reserved
#3 Reserved
#4 TX Disable Disables transmitter operation of VAM-CM.
"UP" – Transmitter enabled (default).
"DOWN" – Transmitter disabled
#5 Reserved
Table 17. Evaluation module control selectors
Control switches and buttons are connected in parallel with VAM control interface. When evaluation
module is controlled via VAM control interface (pin header) all switches in S1000 shall be in "up"
position to allow VAM control interface to disable controls.
26:GSPS Core Module 2.0 VAM-CM HW Description
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