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Page 30 Express-HLE

Signal Pin Description I/O PU/PD Comment

PEG_TX15+

PEG_TX15-

D101

D102

PEG_LANE_RV# D54 PCI Express Graphics lane reversal input strap.

Pull low on the Carrier board to reverse lane order.

I 1.05V

3.4.6 Module Type Definition

Signal Pin # Description I/O Comment

TYPE0#

TYPE1#

TYPE2#

C54

C57

D57

The TYPE pins indicate to the Carrier Board the Pin-out Type that is implemented on

the module. The pins are tied on the module to either ground (GND) or are no-

connects (NC). For Pinout Type 1, these pins are don’t care (X).

TYPE2# TYPE1# TYPE0#

X X X Pinout Type 1

NC NC NC Pinout Type 2

NC NC GND Pinout Type 3 (no IDE)

NC GND NC Pinout Type 4 (no PCI)

NC GND GND Pinout Type 5 (no IDE, no PCI)

GND NC NC Pinout Type 6 (no IDE, no PCI)

The Carrier Board should implement combinatorial logic that monitors the module

TYPE pins and keeps power off (e.g deactivates the ATX_ON signal for an ATX

power supply) if an incompatible module pin-out type is detected. The Carrier Board

logic may also implement a fault indicator such as an LED.

Type 6

3.4.7 Power and Ground

Signal Pin # Description I/O PU/PD Comment

VCC_12V C104-C109

D104-D109

Primary power input: +12V nominal (8.5 ~ 20V wide input).

All available VCC_12V pins on the connector(s) shall be used.

P 8.5~20 V

GND C1, C11, C21, C31, C41,

C51, C60, C70, C76, C80,

C84, C87, C90, C93, C96,

C100, C103, C110, D1,

D11, D21, D31, D41, D51,

D60, D67, D70, D76, D80,

D84, D87, D90, D93, D96,

D100, D103, D110

Ground - DC power and signal and AC signal return path.

All available GND connector pins shall be used and tied to carrier

board GND plane.

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