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User’s Manual for Advantech SOM-A2558 series module V1.00
34
B2 PCIAD2 IO
PCI address/data 2 No pulling
A2 PCIAD3 IO
PCI address/data 3 No pulling
B3 PCIAD4 IO
PCI address/data 4 No pulling
A3 PCIAD5 IO
PCI address/data 5 No pulling
B4 PCIAD6 IO
PCI address/data 6 No pulling
A4 PCIAD7 IO
PCI address/data 7 No pulling
B5 nCBE0
IO
PCI bus command and bytes
enable signal
No pulling
A5 PCIAD8 IO
PCI address/data 8 No pulling
B6 PCIAD9 IO
PCI address/data 9 No pulling
A6 PCIAD10 IO
PCI address/data 10 No pulling
B7 PCIAD11 IO
PCI address/data 11 No pulling
A7 nPCIRST O
PCI bus reset signal No pulling
B8 PCICLKO
IO
PCI bus clock output (Typical
period: 31.2ns)
No pulling
A8 nCBE3
IO
PCI bus command and bytes
enable signal
No pulling
B9 nINTD I PCI bus interrupt D No pulling
A9 nINTC I PCI bus interrupt C No pulling
B10
GND P Ground -
A10
nINTB I PCI bus interrupt B No pulling
B11
nINTA I PCI bus interrupt A No pulling
A11
nGNT3 O
PCI bus grant signal No pulling
B12
nREQ3 I PCI bus request signal No pulling
A12
nGNT2 O
PCI bus grant signal No pulling
B13
nREQ2 I PCI bus request signal No pulling
A13
nGNT1 O
PCI bus grant signal No pulling
B14
nREQ1 I PCI bus request signal No pulling
A14
GND P Ground -
B15
PCIAD31 IO
PCI address/data 31 No pulling
A15
PCIAD30 IO
PCI address/data 30 No pulling
B16
PCIAD12 IO
PCI address/data 12 No pulling
A16
PCIAD13 IO
PCI address/data 13 No pulling
B17
PCIAD14 IO
PCI address/data 14 No pulling
A17
PCIAD15 IO
PCI address/data 15 No pulling
B18
GND P Ground -
A18
nCBE1
IO
PCI bus command and bytes
enable signal
No pulling
B19
PAR IO
PCI bus parity bit No pulling
A19
GND P Ground -
B20
nSERR IO
PCI bus system error signal No pulling
A20
nPERR IO
PCI bus parity error signal No pulling
B21
nSTOP IO
PCI bus stop signal No pulling
A21
nDEVSEL IO
PCI bus device select signal No pulling
B22
nTRDY IO
PCI bus target ready signal No pulling
A22
nIRDY IO
PCI bus initiator ready signal No pulling
B23
nFRAME IO
PCI bus cycle frame signal No pulling
A23
nCBE2 IO
PCI bus command and bytes No pulling