| Signal |
| Signal Description | |
| I2C_CK |
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| General purpose I2C port clock output |
| I2C_DAT |
| General purpose I2C port data I/O line | |
| SPKR |
| Output for audio enunciator - the "speaker" in | |
| BIOS_DISABLE# |
| Module BIOS disable input. Pull low to disable module BIOS. Used to allow | |
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| KB_RST# |
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| Input to module from (optional) external keyboard controller that can force a reset. |
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| Pulled high on the module. This is a legacy artifact of the | |
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| Input to module from (optional) external keyboard controller that can be used to |
| KB_A20GATE |
| control the CPU A20 gate line. The A20GATE restricts the memory access to the | |
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| bottom megabyte and is a legacy artifact of the |
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Signal | Signal Description |
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PCIE_TX[0:2] +/- PCI Express Differential Transmit Pair
PCIE_RX[0:2] +/- PCI Express Differential Receive Pair
PCIE0_CK_REF+/-
Reference clock output for PCI Express lanes
Signal | Signal Description |
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VCC_5V_SBY
Standby power input: +5.0V nominal. See Electrical Specifications for allowable input range. If VCC5_SBY is used, all available VCC_5V_SBY pins on the connector(s) must be used. Only used for standby and suspend functions. May be left unconnected if these functions are not used in the system design.
VCC_RTC
30