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NS9750 Pinout
PCI/CardBus signalsMost of the CardBus signals are the same as the PCI signals. Other CardBus signals are unique and multiplexed with PCI signals for the NS9750. Table9 shows these unique signals. Figure 8 illustrates how to terminate an unused PCI.
AD22 pci_int_d_n2N/A I PCI interrupt request D
AE26 pci_reset_n3N/A I/O PCI reset, output if internal central resource
enabled
AB24 pci_clk_in U N/A I PCI clock in. (Connected to pci_clk_out or an
externally generated PCI reference clock.)
AA23 pci_clk_out N/A O PCI clock out
PCI signal CardBus signal CardBus type Description
INTA# CINT#4Input CardBus interrupt pin. The INTA2PCI pin in the
PCI Miscellaneous Support register must be set
to 0.
INTB# CCLKRUN#4Bidir CardBus pin used to negotiate with the external
CardBus device before stopping the clock.
Allows external CardBus device to request that
the clock be restarted.
INTC# CSTSCHG5Input CardBus status change interrupt signal.
GNT1# CGNT#4Output Grant to external CardBus device from
NS9750’s internal arbiter.

Table 9: CardBus IO multiplexed signals

Pin # Signal name U/D OD
(mA) I/O Description
Table 8: PCI interface pinout