DP83950BVQB National Semiconductor, DP83950BVQB Datasheet - Page 48

• Manufacturer Part Number: DP83950BVQB
• Description: IC CTRLR RIC REPEATER 160-PQFP
• Manufacturer: National Semiconductor

Specifications of DP83950BVQB

• Controller Type: Ethernet Repeater Interface Controller
• Interface: IEEE 802.3
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 380mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 160-MQFP, 160-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *DP83950BVQB

D0
D1
D(7 2)
D(3 0)
D4
D5
D6
D7
6 0 Hub Management Support
Packet Status Register 0
Packet Status Register 1
Bit
Bit
CRCER
D7
A5
D7
PCOMPD
Symbol
CRCER
PA(3 0)
Symbol
A(5 0)
CLN
COL
FAE
resv
D6
A4
FAE
D6
D5
A3
PORT ADDRESS This field defines the port which is receiving the packet
CLEAN RECEIVE This bit is asserted from the start of reception and is deasserted if a collision occurs
within a window from the start of reception to the end of the 13th byte after SFD detection If no SFD is
detected the window is extended to the end of reception
COLLISION If a receive or transmit collision occurs during packet repetition the collision bit is asserted
FRAME ALIGNMENT ERROR This bit is asserted if a Frame Alignment Error occurred in the repeated
packet
CRC ERROR This bit is asserted if a CRC Error occurred in the repeated packet
This status flag should not be tested if the COL bit is asserted since the error may be simply due to the
collision
RESERVED FOR FUTURE USE This bit is currently undefined management software should not
examine the state of this bit
PACKET COMPRESSION DONE If packet compression is utilized this bit informs the user that
compression was performed i e the packet was long enough to require compression
RIC ADDRESS (5 0) This address is defined by the user and is supplied when writing to the RIC Address
Register It is used by hub management software to distinguish between RICs in a multi-RIC system
COL
D5
D4
A2
CLN
D4
D3
A1
PA3
D3
D2
A0
(Continued)
PA2
D2
PCOMPD
D1
48
PA1
D1
Description
Description
resv
PA0
D0
D0