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Computer Group Literature Center Web Site
Board Level Hardware Description
1
Software Initialization
Most functions that have been done with switches or jumpers on other
modules are done by setting control registers on the MVME162LX
Embedded Controller. At power-up or reset, the PROMs that contain the
162Bug debugging package set up the default values of many of these
registers.
Specific programming details may be determined by study of the M68040
Microprocessor User’s Manual. Then check the details of all the
controller’s onboard registers as given in the MVME162LX Embedded
Controller Programmer’s Reference Guide.
Multi-MPU Programming Considerations
Good programming practice dictates that only one MPU at a time have
control of the MVME162LX control registers. Of particular note are:
❏
Registers that modify the address map
❏
Registers that require two cycles to access
❏
VMEbus interrupt request registers
Local Reset Operation
Local reset (LRST) is a subset of system reset (SRST). Local reset can be
generated five ways:
❏
Expiration of the watchdog timer
❏
Pressing the front panel
RESET
switch (if the system controller
function is disabled)
❏
By asserting a bit in the board control register in the GCSR
❏
By SYSRESET*
❏
By powerup reset.
Summary of Contents for MVME162LX 200 Series
Page 1: ...MVME162LX 200 300 Series Embedded Controller Installation and Use V162LX2 3A IH3 ...
Page 6: ......
Page 14: ...xiv ...
Page 66: ...1 52 Computer Group Literature Center Web Site Board Level Hardware Description 1 ...
Page 84: ...2 18 Computer Group Literature Center Web Site Hardware Preparation and Installation 2 ...
Page 108: ...3 24 Computer Group Literature Center Web Site Debugger General Information 3 ...
Page 158: ...C 2 Computer Group Literature Center Web Site C ...
Page 164: ...Ethernet Interconnections E 2 Computer Group Literature Center Web Site E ...
Page 200: ...J 4 Computer Group Literature Center Web Site J ...
Page 208: ...Index IN 8 Computer Group Literature Center Web Site I N D E X ...