Intel EP80579 Manual page 294

Schematics Checklist—Intel
Table 100. Schematic Checklist (Sheet 11 of 26)
Checklist Items
INTRUDER#
SMBALERT# (GPIO[11]) See General Purpose I/O (GPIO) Interface
SIU_CTS[2:1]#
SIU_DCD[2:1]#
SIU_DSR[2:1]#
®
Intel EP80579 Integrated Processor Product Line
Order Number: 320068-005US
®
EP80579 Integrated Processor Product Line
I/O Type
Recommendations
(Default)
• Connect to EP80579 VCCPRTC
I
(VBAT) through a 1MΩ resistor
Serial Interface Unit (SIU or UART) Interface
• Connect signals appropriately
I/O
to RS-232 Transceiver
• Connect signals appropriately
I/O
to RS-232 Transceiver
• Connect signals appropriately
I/O
to RS-232 Transceiver
Comments
• SMBus Intruder Detect: Detects if
the system case has been opened.
Can be set to disables the system if
the box is detected open. This input
signal is in the RTC well. This pin's
status is readable, so it can be used
like a GPI if the Intruder switch is
not needed
• UART Port[2:1] Clear to Send:
Active low, these pins indicate that
data can be exchanged between
UARTs and the external interfaces.
Note:
• Must be pulled high through a 10
KΩ resistor when the port is not
connected to an interfacing device
• UART Port[2:1] Data Carrier Detect:
Active low, these pins indicate that
data carrier has been detected by
the external agents for UART
port[2:1].
Note:
• Must be pulled high through a 10
KΩ resistor when the port is not
connected to an interfacing device
• UART Port[2:1] Data Set Ready:
Active low, these pins indicate that
the external agents are ready to
communicate with UART port[2:1].
Note:
• Must be pulled high through a 10
KΩ resistor when the port is not
connected to an interfacing device
May 2010
294