Configuring The Vmebus Interface - Motorola MVME2401-1 Installation And Use Manual

Modifying the Environment
6

Configuring the VMEbus Interface

6-12
Initializes the PIRQx (PCI Interrupts) route control registers in the
IBC (PCI/ISA bus bridge controller). The ENV parameter is a 32-bit
value that is divided by 4 to yield the values for route control registers
PIRQ0/1/2/3. The default is determined by system type. For details on
PCI/ISA interrupt assignments and for suggested values to enter for
this parameter, refer to the 8259 Interrupts section of Chapter 5 in the
MVME2400-Series VME Processor Module Programmer's Reference
Guide.
Note
LED/Serial Startup Diagnostic Codes: these codes can be
displayed at key points in the initialization of the hardware
devices. Should the debugger fail to come up to a prompt, the
last code displayed will indicate how far the initialization
sequence had progressed before stalling. The codes are
enabled by an ENV parameter:
Serial Startup Code Master Enable [Y/N]=N?
A line feed can be inserted after each code is displayed to prevent it
from being overwritten by the next code. This is also enabled by an
ENV parameter:
Serial Startup Code LF Enable [Y/N]=N?
The list of LED/serial codes is included in the section on MPU,
Hardware, and Firmware Initialization in Chapter 1 of the PPCBug
Firmware Package User's Manual.
ENV asks the following series of questions to set up the VMEbus interface
for the MVME240x modules. To perform this configuration, you should
have a working knowledge of the Universe ASIC as described in your
MVME2400-Series VME Processor Module Programmer's Reference
Guide.
VME3PCI Master Master Enable [Y/N] = Y?
Y
N
Set up and enable the VMEbus Interface. (Default)
Do not set up or enable the VMEbus Interface.
Computer Group Literature Center Web Site