DP83950BVQB National Semiconductor, DP83950BVQB Datasheet - Page 51

• 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

7 0 Port Block Functions
7 3 PORT STATUS REGISTER FUNCTIONS
Each RIC port has its own status register In addition to
providing status concerning the port and its network seg-
ment the register allows the following operations to be per-
formed upon the port
1 Port disable
2 Link Disable
3 Partition reconnection
4 Selection between normal and reduced squelch levels
Note For recommended modules see ‘‘Ethernet Magnetics Vendors for 10BASE-T 10BASE2 and 10BASE5’’ in Section 5 of this Databook
FIGURE 7 1 Port Connection to a 10BASE-T Segment
(Continued)
51
Note that the link disable and port disable functions are mu-
tually exclusive functions i e disabling link does not affect
receiving and transmitting from to that port and disabling a
port does not disable link
When a port is disabled packet transmission and reception
between the port’s segment and the rest of the network is
prevented
TL F 11096 – 19