The GX5295 board has an 8-bit register that can be set by software to simulate the external event lines.
The GX5295 Board has additional programmable clock source that may be used externally. Clock B (CLKBO) can be programmed from 300 KHz to 100 MHz. CLKB is independent from other clock sources although its reference is the same as the GX5295’s main clock generator. The programmed value for this clock is not defined at power up and once programmed, it will not change (even by reset) until programmed to another value. Clock B supports TTL logic families or alternatively, it can be routed to one of the four aux channels.
The GX5295 Board has four auxiliary I/O channels which can be configured to support the following functions:
● External events 0 -3
● External trigger input
● External pause input
● External clock input
● External clock enable input
● Strobe input
● Strobe enable input
● Arm indication output
● Run indication output
● Output clock
● Strobe output
● Clock B output
● PMU mode
● Static output / input. When used as digital channels, these signals have all the same capabilities as the 32 digital I/O channels including programmable drive /sense levels and source / sink current loads.
Each of the input and output signals listed can be routed to the aux channels via software control.