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Chapter 2 Hardware Installation
13
Chapter 2
MXM Connector Signal Description
Signal
Pin#
Pin Type
Pwr Rail /Tolerance
BT700
Carrier Board
Description
P
180
PCIE0_RX-
182
P
179
AC Coupling capacitor
PCIE0_TX-
181
AC Coupling capacitor
P
174
PCIE1_RX-
176
P
173
AC Coupling capacitor
PCIE1_TX-
175
AC Coupling capacitor
P
168
PCIE2_RX-
170
P
167
AC Coupling capacitor
PCIE2_TX-
169
AC Coupling capacitor
P
162
PCIE3_RX-
164
P
161
AC Coupling capacitor
PCIE3_TX-
163
AC Coupling capacitor
PCIE_
155
PCIE_CLK_REF-
157
PCIE_WAKE#
156
I CMOS
3.3V Suspend/3.3V
PU 10K to 3.3V Suspend
PCI Express Wake Event: Sideband wake signal asserted by components requesting wakeup.
PCIE_RST#
158
O CMOS
3.3V/3.3V
Reset Signal for external devices.
Signal
Pin#
Pin Type
Pwr Rail /Tolerance
BT700
Carrier Board
Description
UART0_TX
171
O CMOS
3.3V/3.3V
Connect to UART device
Serial Data Transmitter
UART0_RX
177
I CMOS
3.3V/3.3V
Connect to UART device
Serial Data Reciever
UART0_CTS#
178
I CMOS
3.3V/3.3V
Connect to UART device
Handshake signal, ready to send data
UART0_RTS#
172
O CMOS
3.3V/3.3V
Connect to UART device
Handshake signal, ready to receive data
Signal
Pin#
Pin Type
Pwr Rail /Tolerance
BT700
Carrier Board
Description
G
12
GBE_MDI0-
10
G
11
GBE_MDI1-
9
G
6
GBE_MDI2-
4
G
5
GBE_MDI3-
3
GBE_CTREF
15
REF
NC
Reference voltage for carrier board Ethernet channel 0 magnetics center tap.
The reference voltage is determined by the requirements of the module's PHY and may be as low as 0V and as high as 3.3V.
The reference voltage output should be current limited on the module. In a case in which the reference is shorted to ground, the current must be limited to 250mA
or less.
GBE_LINK#
13
O CMOS 3.3V PP
3.3V/3.3V
NC
Ethernet controller 0 link indicator, active low.
GBE_LINK100#
7
O CMOS 3.3V PP
3.3V/3.3V
Ethernet controller 0 100Mbit/sec link indicator, active low.
GBE_LINK1000#
8
O CMOS 3.3V PP
3.3V/3.3V
Ethernet controller 0 1000Mbit/sec link indicator, active low.
GBE_ACT#
14
O CMOS 3.3V PP
3.3V/3.3V
Ethernet controller 0 activity indicator, active low.
Connect to PCIE device or slot
Connect to PCIE device or slot
Connect to PCIE device or slot
Connect to PCIE device or slot (This Port is BOM Option with On board LAN)
Device - Connect AC Coupling cap 0.1uF (This Port is BOM Option with On board LAN)
Slot - Connect to PCIE Conn pin
Device - Connect AC Coupling cap 0.1uF
Slot - Connect to PCIE Conn pin
Device - Connect AC Coupling cap 0.1uF
Slot - Connect to PCIE Conn pin
Connect to Magnetics Module MDI2+/-
Connect to Magnetics Module MDI3+/-
Device - Connect AC Coupling cap 0.1uF
Slot - Connect to PCIE Conn pin
Connect to PCIE device, PCIe CLK Buffer or slot
PCIE
PCIE
GB_LAN
GB_LAN
GB_LAN
GB_LAN
I/O GB_LAN
Media Dependent Interface (MDI) differential pair 2. The MDI can operate in 1000, 100, and 10Mbit/sec modes.This signal pair is used for all modes.
O PCIE
PCIE
PCI Express Reference Clock for Lanes 0 to 3.
UART Interface Signals
Gigabit Ethernet Signals
I/O GB_LAN
Media Dependent Interface (MDI) differential pair 0. The MDI can operate in 1000, 100, and 10Mbit/sec modes.This signal pair is used for all modes.
I/O GB_LAN
Media Dependent Interface (MDI) differential pair 1. The MDI can operate in 1000, 100, and 10Mbit/sec modes.This signal pair is used for all modes.
Connect to Magnetics Module MDI0+/-
Connect to Magnetics Module MDI1+/-
Pin Types
I Input Pin
O Output Pin
I/O Bi-directional input / output Pin
OD Open drain
OC Open Collector
PP Push Pull
NC Not Connected
PCI Express Interface Signals Descriptions
I PCIE
I PCIE
I PCIE
O PCIE
O PCIE
O PCIE
PCI Express channel 0, Receive Input differential pair.
PCI Express channel 0, Transmit Output differential pair.
PCI Express channel 1, Receive Input differential pair.
PCI Express channel 1, Transmit Output differential pair.
PCI Express channel 2, Receive Input differential pair.
PCI Express channel 2, Transmit Output differential pair.
PCI Express channel 3, Receive Input differential pair.(This Port is BOM Option with On board LAN)
PCI Express channel 3, Transmit Output differential pair.(This Port is BOM Option with On board LAN)
I PCIE
O PCIE
PCIE
PCIE
PCIE
PCIE
PCIE
PCIE
I/O GB_LAN
Media Dependent Interface (MDI) differential pair 3. The MDI can operate in 1000, 100, and 10Mbit/sec modes.This signal pair is used for all modes.