ADLINK cExpress-BT2 User Manual
Page 27
 
cExpress-BT2
Page 27
Signal
Pin #
Description
I/O
PU/PD
Comment
PCI_AD13 
PCI_AD14 
PCI_AD15 
PCI_AD16 
PCI_AD17 
PCI_AD18 
PCI_AD19 
PCI_AD20 
PCI_AD21 
PCI_AD22 
PCI_AD23 
PCI_AD24 
PCI_AD25 
PCI_AD26 
PCI_AD27 
PCI_AD28 
PCI_AD29 
PCI_AD30 
PCI_AD31 
 
D29 
C32 
D30 
D37 
C39 
D38 
C40 
D39 
C42 
D40 
C43 
D42 
C45 
D43 
C46 
D44 
C47 
D45 
C48 
PCI_C/BE0# 
PCI_C/BE1# 
PCI_C/BE2# 
PCI_C/BE3# 
D26 
C33 
C38 
C44 
PCI bus byte enable lines, active low
I/O 
3.3V 
PCI_DEVSEL#
C36
PCI bus Device Select, active low.
I/O 
3.3V 
PU 8k2 
3.3V 
PCI_FRAME#
D36
PCI bus Frame control line, active low.
I/O 
3.3V 
PU 8k2 
3.3V 
PCI_IRDY#
C37
PCI bus Initiator Ready control line, active 
low. 
I/O 
3.3V 
PU 8k2 
3.3V 
PCI_TRDY#
D35
PCI bus Target Ready control line, active 
low. 
I/O 
3.3V 
PU 8k2 
3.3V 
PCI_STOP#
D34
PCI bus STOP control line, active low, driven 
by cycle initiator. 
I/O 
3.3V 
PU 8k2 
3.3V 
PCI_PAR
D32
PCI bus parity
I/O 
3.3V 
PCI_PERR#
C34
Parity Error: 
An external PCI device drives PERR# when it 
receives data that has a parity error. 
I/O 
3.3V 
PU 8k2 
3.3V 
PCI_REQ0# 
PCI_REQ1# 
PCI_REQ2# 
PCI_REQ3# 
C22 
C19 
C17 
D20 
PCI bus master request input lines, active 
low. 
I 3.3V
PU 8k2 
3.3V 
PCI_GNT0# 
PCI_GNT1# 
PCI_GNT2# 
PCI_GNT3# 
C20 
C18 
C16 
D19 
PCI bus master grant output lines, active low. O 3.3V
PCI_GNT[0..3]# are boot strap signals (see note 
below) 
PCI_RESET#
C23
PCI Reset output, active low.
O 3.3V
PCI_LOCK#
C35
PCI Lock control line, active low.
I/O 
3.3V 
PU 8k2 
3.3V 
PCI_SERR#
D33
System Error: SERR# may be pulsed active 
by any PCI device that detects a system error 
condition. 
I/O 
3.3V 
PU 8k2 
3.3V 
PCI_PME# C15
PCI
Power
Management Event: PCI
peripherals drive PME# to wake system from 
low-power states S1–S5. 
I 
3.3VSB