DP83955AV National Semiconductor, DP83955AV Datasheet - Page 21

• Manufacturer Part Number: DP83955AV
• Description: IC CTRLR RIC REPEATER 100-PQFP
• Manufacturer: National Semiconductor
• Series: LERIC™r

Specifications of DP83955AV

• Controller Type: LitE Repeater Interface Controller
• Voltage - Supply: 5V
• Current - Supply: 250mA
• Mounting Type: Surface Mount
• Package / Case: 84-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Operating Temperature: -
• Interface: -
• Other names: *DP83955AV

5 0 Functional Description
LERIC to drive
LERIC to drive
LERIC to drive
LERIC to drive
required for a
Receiving the
required for a
Receiving the
required for a
Receiving the
required for a
Receiving the
Conditions
Conditions
Conditions
Conditions
this signal
this signal
this signal
this signal
Function
Function
Function
Function
LERIC
LERIC
LERIC
LERIC
Signal
Signal
Signal
Signal
PORT N or PORT M
Input signal to the PSM arbitration
chain This chain is employed to
identify PORT N and PORT M
Note A LERIC which contains PORT N or
Not Applicable
This is dependent upon the method
used to cascade LERICs described in
Section 5 3
Output signal from the PSM arbitration
chain
This is dependent upon the method
used to cascade LERICs described in
Section 5 3
Not Applicable
This signal denotes there is activity on
A LERIC must contain PORT N
or PORT M
Note Although this signal normally has only
The signal is monitored by all LERICs
in the repeater system
This signal denotes that a repeater
port that is not Port N or Port M is
experiencing a collision
Any LERIC which satisifies the above
condition
Note This bus line is used in a wired-OR
The signal is monitored by all LERICs
in the repeater system
PORT M may be identified by its
ACKO signal being low when its ACKI
input is high
one source asserting the signal active
it is used in a wired-OR configuration
ANYXN
configuration
ACKO
ACTN
ACKI
(Continued)
21
LERIC to drive
LERIC to drive
LERIC to drive
LERIC to drive
required for a
Receiving the
required for a
Receiving the
required for a
Receiving the
required for a
Receiving the
Conditions
Conditions
Conditions
Conditions
this signal
this signal
this signal
this signal
Function
Function
Function
Function
LERIC
Signal
LERIC
Signal
LERIC
Signal
LERIC
Signal
Denotes PORT N or PORT M is
experiencing a collision
A LERIC must contain PORT N
or PORT M
The Signal is monitored by all other
LERICs in the repeater system
This signal acts as an activity framing
signal for the IRC and IRD signals
A LERIC must contain PORT N
The Signal is monitored by all other
LERICs in the repeater system
Decoded serial data in NRZ format
received from the network segment
attached to PORT N
A LERIC must contain PORT N
The signal is monitored by all other
LERICs in the repeater system
Clock signal associated with IRD and
IRE
A LERIC must contain PORT N
The signal is monitored by all other
LERICs in the repeater system
COLN
IRD
IRC
IRE