Motorola MCPN750A Benutzerhandbuch
1-10
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Hardware Preparation and Installation
1
System Considerations
The MCPN750A is designed to operate as a CompactPCI non-system slot
board. Consequently, the MCPN750A must be installed in the subrack
system slot marked with the circle symbol.
board. Consequently, the MCPN750A must be installed in the subrack
system slot marked with the circle symbol.
The MCPN750A can operate properly, with or without a system slot
controller board. In the standard operating mode (with a system slot
board), the system slot board is used to provide clock and arbitration
signals to the MCPN750A. In the stand-alone mode, a jumper must be set
on the MCPN750A, in order to obtain clock signals from other on-board
devices.
controller board. In the standard operating mode (with a system slot
board), the system slot board is used to provide clock and arbitration
signals to the MCPN750A. In the stand-alone mode, a jumper must be set
on the MCPN750A, in order to obtain clock signals from other on-board
devices.
Installing a jumper on J8 routes an onboard PCI clock to the 21554 primary
side clock input. This allows the MCPN750A to operate in a chassis
without a system slot controller board installed. The chassis must provide
+5V, +3.3V, +12V, -12V and VIO to the MCPN750A, and the BD_SEL
pin (P1-D15) in the chassis must be grounded. In addition, in the stand-
alone mode, the MCPN750A cannot communicate over the CompactPCI
backplane.
side clock input. This allows the MCPN750A to operate in a chassis
without a system slot controller board installed. The chassis must provide
+5V, +3.3V, +12V, -12V and VIO to the MCPN750A, and the BD_SEL
pin (P1-D15) in the chassis must be grounded. In addition, in the stand-
alone mode, the MCPN750A cannot communicate over the CompactPCI
backplane.
On the MCPN750A baseboard, the standard serial console port (
COM1
)
serves as the PPCBug debugger console port. The firmware console should
be set up as follows:
be set up as follows:
❏
Eight bits per character
❏
One stop bit per character
❏
Parity disabled (no parity)
❏
Baud rate of 9600 baud
9600 baud is the power-up default for serial ports on MCPN750A 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.
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.