cExpress-BT2
Pinouts and Signal Descriptions
17
3.3.7.
Express Card
Signal
Pin # Description
I/O
PU/PD
Comment
EXCD0_CPPE#
EXCD1_CPPE#
A49
B48
PCI ExpressCard: PCI Express capable
card request
I 3.3V
PU 10k
3.3V
EXCD0_PERST#
EXCD1_PERST#
A48
B47
PCI ExpressCard: reset
O 3.3V
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 3.3V
LPC_FRAME#
B3
LPC frame indicates the start of an LPC
cycle
O 3.3V
LPC_DRQ0#
LPC_DRQ1#
B8
B9
LPC serial DMA request
I 3.3V
LPC_SERIRQ
A50
LPC serial interrupt
I/O OD 3.3V
PU 8k2
3.3V
LPC_CLK
B10
LPC clock output –33MHz nominal
O 3.3V
Atom clock 33 MHz
Celeron clock
25
MHz
Содержание COM Express cExpress-BT2
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