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UC_GPIO0
General purpose IO pin pulled up to 3.3V (8.2K) and routed to microcontroller pin 31. Default is an input.
UC_GPIO1
General purpose IO pin pulled up to 3.3V (8.2K) and routed to microcontroller pin 32. Default is an input.
UC_GPIO2
General purpose IO pin pulled up to 3.3V (8.2K) and routed to microcontroller pin 29. Default is an input.
RS232_TX
RS-232 level Transmit data pin from the microcontroller serial data out pin 33.
RS232_RX
RS-232 level Receive data pin to the microcontroller serial data in pin 34.
PLT_RST_L
VP3500 Platform reset output signal. This is an open collector type output to a rear transition module
(RTM).
UC_BKGD
The Microcontroller background signal to the programming/debug header on the RTM.
VP3500 User Manual • Document Number 101-3500-0001 • Revision A0
Property of Rigel Engineering, LLC. Confidential & Proprietary
690 Cone Park Court, Merritt Island, Florida 32952
page 35