DP83816-MAAP National Semiconductor, DP83816-MAAP Datasheet - Page 6
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DP83816-MAAP
Manufacturer Part Number
DP83816-MAAP
Description
BOARD EVALUATION DP83816
Manufacturer
National Semiconductor
Datasheet
1.DP83816AVNGNOPB.pdf
(106 pages)
Specifications of DP83816-MAAP
Main Purpose
Interface, Ethernet
Utilized Ic / Part
DP83816
Lead Free Status / RoHS Status
Not applicable / Not applicable
Secondary Attributes
-
Embedded
-
Primary Attributes
-
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2.0 Pin Description
PCI Bus Interface
SERRN
STOPN
TRDYN
PMEN/
CLKRUNN
3VAUX
PWRGOOD
Symbol
LQFP Pin
No(s)
122
123
98
96
93
59
(Continued)
Dir
I/O
I/O
I/O
I/O
I
I
System Error: This signal is asserted low by DP83816 during address parity errors
and system errors if enabled.
Stop: This signal is asserted low by the target device to request the master device
to stop the current transaction.
Target Ready: As a master, this signal indicates that the target is ready for the data
during write operation and with the data during read operation. As a target, this
signal will be asserted low when the (target) device is ready to complete the current
data phase transaction. This signal is used in conjunction with the IRDYN signal.
Data transaction takes place at the rising edge of PCICLK when both IRDYN and
TRDYN are asserted low.
Power Management Event/Clock Run Function: This pin is a dual function pin.
The function of this pin is determined by the CLKRUN_EN bit 0 of the CLKRUN
Control and Status register (CCSR). Default operation of this pin is PMEN.
Power Management Event: This signal is asserted low by the DP83816 to indicate
that a power management event has occurred. For pin connection please refer to
Section 6.7.
Clock Run Function: In this mode, this pin is used to indicate when the PCICLK
will be stopped.
PCI Auxiliary Voltage Sense: This pin is used to sense the presence of a 3.3V
auxiliary supply in order to define the PME Support available. For pin connection
please refer to Section 6.7.
This pin has an internal weak pull down.
PCI bus power good: Connected to PCI bus 3.3V power, this pin is used to sense
the presence of PCI bus power during the D3 power management state.
This pin has an internal weak pull down.
6
Description
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