Specifications

CP302 Functional Description and Configuration
ID 21112, Rev. 05Page 2 - 38 ® PEP Modular Computers GmbH
2.9.4 I/O Status
This register describes the local and CompactPCI control signals. The watchdog status
bit indicates the status of the watchdog timer. If the timer is not re-triggered within the
previously set time period, the bit is set to “0”. The fail signal is an output of the power
supply indicating a power supply failure. For the description of the derate and
enumeration signals please see the interrupt routing register.
The I/O location for the I/O status is 0x286
2.9.5 Board ID
This register describes the board index.
I/O location 0x288.
The content of this register is unique for each PEP CompactPCI board.
Table 2-27: I/O Status
Bits Type Default Function
7 R --
Watchdog status
0 = watchdog interrupt
6 R -- Reserved
5 R -- Reserved
4 R -- Reserved
3 R -- System slot identification 0 = System slot
2 R -- System enumeration hot swap 0 = new board
1 R --
Supply fail signal of CPCI (this signal is low
active)
0 R --
Derating signal of CPCI (this signal is low
active)
Table 2-28: Board ID
Bits Type Default Function
7-0 R --
Board version
0 = reserved
0x30 = CP302
0x31 = CP302PM
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