Motorola MVME187 manual Front Panel Switches and LEDs, Front Panel LEDs, Switch Description

Functional Description

Front Panel Switches and LEDs

There are two switches and eight LEDs on the boardÕs front panel (refer to Table 2-3, Table 2-4, and Figure 3-1 on page 3-6).

Table 2-3. Front Panel Switches

Switch	Description
Name
RESET	The RESET switch resets all onboard devices and drives SYSRESET* if the
	board is system controller. The RESET switch may be disabled by software.
	When enabled by software, the ABORT switch generates an interrupt at a user-
ABORT	programmable level. It is normally used to abort program execution and
	return to the debugger.

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		Table 2-4. Front Panel LEDs
LED	Color	Description
Name
FAIL	Red	The FAIL LED lights when the BRDFAIL signal line is active.
STAT	Yellow	The STAT LED is controlled by software on the MVME187.
RUN	Green	The RUN LED lights when the local bus TIP* signal line is low. This
		indicates one of the local bus masters is executing a local bus cycle.
SCON	Green	The SCON LED lights when the MVME187 is the VMEbus system
		controller.
LAN	Green	The LAN LED lights when the LAN chip is local bus master.
+12V	Green	The +12V LED lights when +12V power is available to the Ethernet
		transceiver interface.
SCSI	Green	The SCSI LED lights when the SCSI chip is local bus master.
		The VME LED lights when the board is using the VMEbus (VMEbus
VME	Green	AS* is asserted by the VMEchip2) or when the board is accessed by
		the VMEbus (VMEchip2 is the local bus master).

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