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2-64 Service Guide
Table 2-7 CL-PD6832 Pin Descriptions
Pin Name Description Pin Number I/O Power
SIN#
/INTD#
/ISDAT
Serial Interrupt Input / PCI Bus Interrupt D /
Serial IRQ Data: In PCI Interrupt Signaling
mode, this output can be used as an interrupt
output connected to the PCI bus INTD#
interrupt line. In PC/PCI Serial Interrupt
Signaling mode, this pin is the serial interrupt
input, SIN#. In External-Hardware Interrupt
Signaling mode, this pin is the IRQ vector data,
ISDAT, that is serially transmitted to the
external serial-to-parallel shifters.
206 I/O 4
CLKRUN#
Clock Run: This pin is an input to indicate the
status of PCI_CLK and an open-drain output to
request the starting or speeding up of
PCI_CLK. This pin complies with the Mobile
PC/PCI Extended Interrupt Specification.
208 I/O 4
GNT#
Grant: This signal indicates that access to the
bus has been granted.
2I4
REQ#
Request: This signal indicates to the arbiter
that the CL-PD6832 requests use of the bus.
3O4
PCI_VCC
PCI Bus Vcc: These pins can be connected to
either a 3.3- or 5-volt power supply. The PCI
bus interface pin outputs listed in this table will
operate at the voltage applied to these pins,
independent of the voltage applied to other CL-
PD6832 pin groups.
6, 21, 37, 50 PWR