Manualshelf

Specifications

ManualsBrandsDynamic Engineering ManualsMedia ConverterPMC2PCI
101102103104105106107108109110
PC BIOS
PP 41x/03x 10-9
10.4.4 CompactPCI Bridge Configuration
The BIOS provides Setup menus that allow configuration of certain features of the CompactPCI
Bridge, these can be found under the CompactPCI top level menu. The fields available via Setup
depend on the board’s operating mode.
10.4.5 System Controller Mode
In System controller mode two Setup options are provided:
ENUM Interrupt allows the user to specify whether the CompactPCI ENUM interrupt drives NMI
or IRQ5.
M66EN Interrupt allows the user to specify whether the CompactPCI M66EN signal drives
IRQ5.
10.4.6 Satellite Mode
In Satellite mode the board does not connect to the CompactPCI interface, therefore no Setup
menu is provided.
10.4.7 Peripheral Mode
When the board is operating in Peripheral mode, the BIOS provides two sub-menus for configuring
the upstream and downstream windows of the CompactPCI bridge.
10.4.7.1 Downstream Windows
Downstream windows give the Peripheral mode PP 41x/03x board access to resources on the
CompactPCI bus. The CompactPCI bridge provides three downstream windows: window 0 can
map either memory or I/O addresses; windows 1 and 2 are for memory addresses only.
The BIOS Setup menu allows the user to specify the size of each window and the CompactPCI
address that will be accessed via the window. The local address of the window is configured
automatically by the BIOS.
NOTE: The local address of downstream windows is not fixed and may change if the
board configuration is modified. Application software should always read a window’s base
address from PCI configuration space.
10.4.7.2 Upstream Windows
Upstream windows give devices on the CompactPCI bus access to resources on the Peripheral
mode PP 41x/03x board. The CompactPCI bridge provides three upstream windows: window 0 can
map either memory or I/O addresses; windows 1 and 2 are for memory addresses only.
The BIOS allows the user to specify the size of each window and the local address that will be
accessed via the window. The System Controller assigns the window’s address on the
CompactPCI bus.