2-10
Computer Group Literature Center Web Site
Startup and Operation
2
3. CompactPCI Push Button Reset (RST#) from the CompactPCI
backplane.
4. Watchdog timer Reset function controlled by the SGS-Thomson
MK48T559 Watchdog Timer or the Raven Watchdog Timer.
5. Software Hard Reset (PBC Port 92 Register)
6. 21554 PCI-to-PCI bridge Secondary Reset Bit
7. 21554 PCI-to-PCI bridge Chip Reset Bit.
The following table shows which devices are affected by the various types
of resets. For details on using resets, refer to the MCPN750A CompactPCI
Single Board Computer Programmer’s Reference Guide (part number
MCPN750A/PG).
# 21554 Secondary Reset Bit does not reset the 21554 register state but
does reset the 21554 data buffers.
* A configuration write is required to clear the Secondary Reset Bit after
it has been written so this bit must not be set by the local MCPN750A
processor or else the board will lock up.
Table 2-2. Classes of Reset and Effectiveness
Device Affected
Processor
Raven
ASIC
Falcon
Chip Set
21554
Bridge
ISA
Devices
Other PCI
Devices
Reset Source
Power-On/undervoltage
√
√
√
√
√
√
Front Panel Reset switch
√
√
√
√
√
√
CompactPCI PRST#
√
√
√
√
√
√
Watchdog Timer reset
√
√
√
√
√
√
S/W Hard Reset (PBC
Port 92 Register)
√
√
√
√
√
CompactPCI Reset*
(21554 Secondary Bit)
√
√
√
#
√
√
CompactPCI Reset**
(21554 Chip Reset Bit)
√
√
√
√
√
√
Summary of Contents for MCPN750A
Page 13: ...xii ...
Page 15: ...xiv ...
Page 53: ...1 32 Computer Group Literature Center Web Site Hardware Preparation and Installation 1 ...
Page 67: ...2 14 Computer Group Literature Center Web Site Startup and Operation 2 ...
Page 105: ...5 14 Computer Group Literature Center Web Site Remote Start Via the PCI Bus 5 ...
Page 167: ...7 38 Computer Group Literature Center Web Site Connector Pin Assignments 7 ...
Page 171: ...A 4 Computer Group Literature Center Web Site Specifications A ...
Page 187: ...Index IN 10 Computer Group Literature Center Web Site I N D E X ...
