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Hardware Preparation and Installation
1
System Considerations
The MCP750 is designed to operate as a CompactPCI system slot board.
As a system slot board, the MCP750 provides system clocks and
arbitration for the other peripheral slots in the subrack. Consequently, the
MCP750 must be installed in the subrack system slot marked with the
triangle symbol.
The MCP750 provides seven peripheral slot clock outputs (CLK0-CLK6)
per CompactPCI specification 2.0 R2.1. These clocks are generated by the
DEC21154 PCI-to-PCI bridge. Arbitration for the seven peripheral slot
bus masters is provided by the MCP750 using the DEC21154 PCI-to-PCI
bridge. The DEC21154 implements a programmable 2-level rotating
algorithm. Refer to the DEC21154 data sheet for additional details (listed
in
Appendix B, Related Documentation
).
On the MCP750 base board, the standard serial console port (
COM1
) serves
as the PPCBug debugger console port. The firmware console should be set
up as follows:
❏
Eight bits per character
❏
One stop bit per character
❏
Parity disabled (no parity)
❏
Baud rate of 9600 baud
9600 is the default baud rate for serial ports on MCP750 boards. After
power-up you can reconfigure the baud rate if you wish, using the PPCBug
PF (Port Format) command via the command line interface. Whatever the
baud rate, some type of hardware handshaking — either XON/OFF or via
the RTS/CTS line — is desirable if the system supports it.
MCP750 Module Power Requirements
The MCP750 module draws +5Vdc, +3.3Vdc, VIO, +12Vdc, and
-12Vdc from the CompactPCI backplane connector J1. The +5Vdc and
+3.3Vdc inputs are fused using 5 amp slow blow replaceable fuses (refer
to
Figure 1-2
for the location of the fuses and
Table 3-3 on page 3-18
for
