3-9
C2K User’s Guide
Interfaces
i.
PMC1_VIO:
+5V or +3.3V according to PMC1 VIO Selection header/jumper—P9.
j.
PMC_JTAG_
EN#:
Includes the PMC sites in the JTAG Scan chain. When this signal is asserted (low),
the PMC modules installed on the PMC sites are included in the JTAG Scan chain.
NOTE:
This function is intended to be used during manufacturing test time.
k.
PROCFAIL#:
GPIO_14 or Processor Fail output. This signal is asserted when a processor failure
(watchdog timer expire) has been detected.
l.
ROM_WP#:
Flash write-protect input. When asserted (active low) the flash memory is write-pro-
tected. This signal is pulled up enabling writes to flash memory for backplanes that do
not support a write-protect feature.
m.
Serial ATA:
1.5Gb/s serial ATA (SATA1, SATA2).
n.
Serial I/O:
These ports are configured as RS-232 (transmit and receive signals only) (COM1,
COM2)
o.
USB
Standard USB 2.0 ports (USB1, USB2, USB3)
NOTES:
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