DFI CR902-B - Manual (Page 22)

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22
Chapter 3
Signal Pin# Pin Type Pwr Rail /Tolerance PU/PD Description
PCI Signals Descriptions
PCI_RESET# C23 O CMOS 3.3V Suspend/ 5V PCI Reset output, active low.
PCI_LOCK# C35 I/O CMOS 3.3V / 5V PU 8.2K: to 3.3V PCI Lock control line, active low.
PCI_SERR# D33 I/O OD CMOS 3.3V / 5V PU 8.2K: to 3.3V System Error: SERR# may be pulsed active by any PCI device that detects a system error condition.
PCI_PME# C15 I CMOS 3.3V Suspend/ 5V PU 10K: to 3.3V Suspend PCI Power Management Event: PCI peripherals drive PME# to wake system from low-power states S1–S5.
PCI_CLKRUN# D48 I/O CMOS 3.3V / 5V PU 8.2K: to 3.3V Bidirectional pin used to support PCI clock run protocol for mobile systems.
PCI_IRQA# C49 PU 8.2K: to 3.3V
PCI_IRQB# C50 PU 8.2K: to 3.3V
PCI_IRQC# D46 PU 8.2K: to 3.3V
PCI_IRQD# D47 PU 8.2K: to 3.3V
PCI_CLK D50 O CMOS 3.3V / 3.3V PCI 33MHz clock output.
PCI_M66EN D49 I CMOS 3.3V / 5V
N.C. and chip PD 10K: to
GND
Module input signal indicates whether an off-Module PCI device is
capable of 66MHz operation. Pulled to GND by Carrier Board device or
by Slot Card if the devices are NOT capable of 66 MHz operation.
If the Module is not capable of supporting 66 MHz PCI operation, this
input may be a no-connect on the Module.
If the Module is capable of supporting 66 MHz PCI operation, and if this
input is held low by the Carrier Board, the Module PCI interface shall operate at 33 MHz.
Signal Pin# Pin Type Pwr Rail /Tolerance PU/PD Description
USB0+ A46
USB0- A45
USB1+ B46
USB1- B45
USB2+ A43
USB2- A42
USB3+ B43
USB3- B42
USB4+ A40
USB4- A39
USB5+ B40
USB5- B39
USB6+ A37
USB6- A36
USB7+ B37
USB7- B36
USB_0_1_OC# B44 I CMOS 3.3V Suspend/3.3V PU 10K: to 3.3V Suspend
USB over-current sense, USB channels 0 and 1. A pull-up for this line
shall be present on the Module. An open drain driver from a USB
current monitor on the Carrier Board may drive this line low. Do not
pull this line high on the Carrier Board.
USB_2_3_OC# A44 I CMOS 3.3V Suspend/3.3V PU 10K: to 3.3V Suspend
USB over-current sense, USB channels 2 and 3. A pull-up for this line
shall be present on the Module. An open drain driver from a USB
current monitor on the Carrier Board may drive this line low. Do not
pull this line high on the Carrier Board.
USB_4_5_OC# B38 I CMOS 3.3V Suspend/3.3V PU 10K: to 3.3V Suspend
USB over-current sense, USB channels 4 and 5. A pull-up for this line
shall be present on the Module. An open drain driver from a USB
current monitor on the Carrier Board may drive this line low. Do not
pull this line high on the Carrier Board.
USB_6_7_OC# A38 I CMOS 3.3V Suspend/3.3V PU 10K: to 3.3V Suspend
USB over-current sense, USB channels 6 and 7. A pull-up for this line
shall be present on the Module. An open drain driver from a USB
current monitor on the Carrier Board may drive this line low. Do not
pull this line high on the Carrier Board.
I/O USB 3.3V Suspend/3.3V USB differential pairs 1
I/O USB 3.3V Suspend/3.3V USB differential pairs 2
I CMOS 3.3V / 5V PCI interrupt request lines.
USB Signals Descriptions
I/O USB 3.3V Suspend/3.3V USB differential pairs 0
I/O USB 3.3V Suspend/3.3V USB differential pairs 5
I/O USB 3.3V Suspend/3.3V USB differential pairs 6
I/O USB 3.3V Suspend/3.3V USB differential pairs 3
I/O USB 3.3V Suspend/3.3V USB differential pairs 4
I/O USB 3.3V Suspend/3.3V
USB differential pairs 7, USB7 may be configured as a USB client or as a host, or both, at the
Module designer's discretion.(CR902-B/BL default set as a host)