Lpc Bus - ADLINK Technology AMD COM Express Express-VR7 User Manual

Express-VR7 User's Guide
4.3.5

LPC Bus

Name Pin # Description
LPC_AD0 B4 LPC multiplexed address, command and data bus
LPC_AD1 B5
LPC_AD2 B6
LPC_AD3 B7
LPC_FRAME# B3 LPC frame indicates the start of an LPC cycle
LPC_DRQ0# B8 LPC serial DMA request
LPC_DRQ1# B9
LPC_SERIRQ A50 LPC serial interrupt
LPC_CLK B10 LPC clock output –33MHz nominal
Page 33
I/O
I/O 3.3VSB
O 3.3VSB
I 3.3V
I/O 3.3VSB
O 3.3VSB
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PU / PD Comment
Not supported
PU 8.2K
3.3VSB
The LPC_CLK frequency is 24MHz on this platform
PICMG COM.0 R3.1