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2.3 Power Requirements
The C2K requires +5.0V and +3.3V from the CompactPCI backplane and Hot Swap functions
require +12V. Installed PMC modules may require ±12V.
2.4 Configurations Jumpers
The C2K provides the following configuration header/jumpers:
2.4.1 FLASH_WP# (P6)
P6 is a 2-pin Flash Write-Protect header/jumper that enables write-protection for the flash mem-
ory.
If a jumper is installed on P6, the FLASH_WP# signal is asserted preventing writes to the
flash ROM.
If a jumper is not installed on P6, the FLASH_WP# signal is de-asserted allowing writes the
flash ROM.
2.4.2 EM_BOOTSEL# (P7)
P7 is a 2-pin Emergency Boot Select header/jumper that determines which boot code the C2K will
execute after reset. Boot code provided by GEIP is stored in the upper 8MB of flash memory.
If a jumper is installed on the EM_BOOTSEL header (P7), the GEIP firmware will boot
from the GEIP provided emergency boot code stored in the Emergency Boot area of flash.
If a jumper is not installed on the EM_BOOTSEL header (P7), the firmware will jump to
user boot code area and begin executing custom boot code (see "Boot Code Selection" on
page 4-3).
2.4.3 PCI VIO Select (P9, P12)
P9 and P12 are 3-pin header/jumpers that set the VIO for PCI Busses (PMC sites) at +3.3V or
+5V. P12 controls the VIO for PCI Bus 0 (PMC0) and P9 controls VIO for PCI Bus 1 (PMC1).
If a jumper is installed on pins 1 and 2, the VIO is set to +3.3V.
If a jumper is installed on pins 2 and 3, the VIO is set to +5V
1. +3.3V
2. PMC VIO
3. +5V
C2K User's Guide
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Installation
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