Intel E3815 FH8065301567411 数据表
产品代码
FH8065301567411
PCU – iLB – Low Pin Count (LPC) Bridge
Intel
®
Atom™ Processor E3800 Product Family
4516
Datasheet
35.2
Features
The LPC interface to the SoC is shown in
. Note that the SoC implements all
of the signals that are shown as optional, but peripherals are not required to do so.
Note:
The LPC controller does not implement bus mastering cycles or DMA.
Note:
The LPC controller is the subtractive agent of the Intel Legacy Block. All transactions
not claimed elsewhere are sent to the LPC controller.
not claimed elsewhere are sent to the LPC controller.
Table 320. LPC Signals
Signal Name
Direction
Plat. Power
Description
ILB_LPC_AD[3:0]
I/O
VLPC
LPC Multiplexed Command, Address, Data: Internal pull-ups are
provided for these signals.
These signals are muxed and may be used by other functions.
provided for these signals.
These signals are muxed and may be used by other functions.
ILB_LPC_CLK[0]
O
VLPC
LPC Clock [0] Out: 33 MHz PCI-like clock driven to LPC peripherals.
These signals are muxed and may be used by other functions.
These signals are muxed and may be used by other functions.
ILB_LPC_CLK[1]
O or I
VLPC
LPC Clock [1] Out: 33 MHz PCI-like clock driven to LPC peripherals.
Can be configured as an input to compensate for board routing delays
through Soft Strap.
These signals are muxed and may be used by other functions.
Can be configured as an input to compensate for board routing delays
through Soft Strap.
These signals are muxed and may be used by other functions.
ILB_LPC_CLKRUN#
I/OD
VLPC
LPC Clock Run: Input to determine the status of ILB_LPC_CLK and an
open drain output used to request starting or speeding up
ILB_LPC_CLK. This is a sustained tri-state signal used by the central
resource to request permission to stop or slow ILB_LPC_CLK. The
central resource is responsible for maintaining the signal in the
asserted state when ILB_LPC_CLK is running and deasserts the signal
to request permission to stop or slow ILB_LPC_CLK. An internal pull-up
is provided for this signal.
This signal is muxed and may be used by other functions.
open drain output used to request starting or speeding up
ILB_LPC_CLK. This is a sustained tri-state signal used by the central
resource to request permission to stop or slow ILB_LPC_CLK. The
central resource is responsible for maintaining the signal in the
asserted state when ILB_LPC_CLK is running and deasserts the signal
to request permission to stop or slow ILB_LPC_CLK. An internal pull-up
is provided for this signal.
This signal is muxed and may be used by other functions.
ILB_LPC_FRAME#
O
VLPC
LPC Frame: This signal indicates the start of an LPC cycle, or an abort.
This signal is muxed and may be used by other functions.
This signal is muxed and may be used by other functions.
ILB_LPC_SERIRQ
I/O
V1P8S
Serial Interrupt Request: This signal implements the serial interrupt
protocol.
This signal is muxed and may be used by other functions.
protocol.
This signal is muxed and may be used by other functions.