2-1
2
2
Startup and Operation
Introduction
This chapter describes the functionality of the switches, status indicators,
and I/O ports on MVME167P Single-Board Computer and summarizes the
process of powering up the board after its installation in a system.
For programming information, consult the MVME1X7P Single Board
Computers Programmer’s Reference Guide, listed in
.
Front Panel Switches and Indicators
There are two switches (ABORT and RESET) and eight LEDs (FAIL,
STAT, RUN, SCON, LAN, +12V [LAN power], SCSI, and VME) located
on the MVME167P front panel.
Table 2-1. MVME167P Front Panel Controls
Control/Indicator
Function
Abort Switch (ABORT)
Sends an interrupt signal to the processor. The interrupt is
normally used to abort program execution and return control to
the debugger firmware located in the MVME167P EPROMs.
The interrupter connected to the Abort switch is an edge-
sensitive circuit, filtered to remove switch bounce.
Reset Switch (RESET)
Resets all onboard devices. Also drives a SYSRESET* signal if
the MVME167P is system controller. SYSRESET* signals may
be generated by the Reset switch, a power-up reset, a watchdog
timeout, or by a control bit in the Local Control/Status Register
(LCSR) in the VMEchip2 ASIC. For further details, refer to
Chapter 5, Functional Description
FAIL LED (DS1, red)
Board failure. Lights if a fault occurs on the MVME167P board.
STAT LED (DS2, amber)
CPU status. Lights if the processor enters a halt condition.
Содержание MVME167P
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