cExpress-KL
Pinouts and Signal Descriptions
17
3.3.8. LPC
Bus
Signal
Pin
Description
I/O
PU/PD
Comment
LPC_AD[0:3] B4-B7
LPC multiplexed address, command and data
bus
I/O
3.3VSB
Skylake platform uses
standby power for LPC
bus
LPC_FRAME# B3
LPC frame indicates the start of an LPC cycle O
3.3VSB
Skylake platform uses
standby power for LPC
bus
LPC_DRQ0#
LPC_DRQ1#
B8
B9
LPC serial DMA request
I 3.3V
NC.
No support on Skylake-U
platform
LPC_SERIRQ
A50
LPC serial interrupt
I/O OD
3.3VSB
PU 8k2
3.3V
Skylake platform uses
standby power for LPC
bus.
LPC_CLK
B10
LPC clock output - 33MHz nominal
O
3.3VSB
Skylake platform uses
standby power for LPC
bus.
The LPC_CLK frequency
is 24MHz.
3.3.9. USB
Signal
Pin
Description
I/O
PU/PD
Comment
USB0+
USB0-
A46
A45
USB differential data pairs for Port 0
I/O
3.3VSB
USB 1.1/ 2.0 compliant
USB1+
USB1-
B46
B45
USB differential data pairs for Port 1
I/O
3.3VSB
USB 1.1/ 2.0 compliant
USB2+
USB2-
A43
A42
USB differential data pairs for Port 1
I/O
3.3VSB
USB 1.1/ 2.0 compliant
USB3+
USB3-
B43
B42
USB differential data pairs for Port 2
I/O
3.3VSB
USB 1.1/ 2.0 compliant
USB4+
USB4-
A40
A39
USB differential data pairs for Port 3
I/O
3.3VSB
USB 1.1/ 2.0 compliant
USB5+
USB5-
B40
B39
USB differential data pairs for Port 4
I/O
3.3VSB
USB 1.1/ 2.0 compliant
USB6+
USB6-
A37
A36
USB differential data pairs for Port 5
I/O
3.3VSB
USB 1.1/ 2.0 compliant
USB7+
USB7-
B37
B37
USB differential data pairs for Port 6
I/O
3.3VSB
USB 1.1/ 2.0 compliant
USB_0_1_OC# B44
USB over-current sense, USB ports 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.
I
3.3VSB
PU 10k
3.3VSB
Do not pull high on carrier
USB_2_3_OC# A44
USB over-current sense, USB ports 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. .
I
3.3VSB
PU 10k
3.3VSB
Do not pull high on carrier
Содержание cExpress-KL
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