DP83953VUL National Semiconductor, DP83953VUL Datasheet - Page 67

• Manufacturer Part Number: DP83953VUL
• Description: IC CTRLR RIC REPEATER 160-PQFP
• Manufacturer: National Semiconductor

Specifications of DP83953VUL

• Controller Type: Ethernet Repeater Interface Controller
• Interface: IEEE 802.3
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 870mA
• 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: *DP83953VUL

7.0 RIC2A Registers
Port Event Count Register 2 (PECR-2) (Page 4H Addresses 11H to 1DH)
The Port Event Count Register 2 (PECR-2) shows the instantaneous value of the specified port's 8 - bit counter. The
counter increments when an enabled event occurs. The counter may be cleared when it is read, and prevented from roll-
ing over when the maximum count is reached, by setting the appropriate control bits in the ECIMR - 2 register.
Port Security Configuration Register (PSCR) (Pages 4H, 5H, 6H, 8H, 9H)
This register sets up the various security modes for the RIC2A. It provides port specific information such as enabling/dis-
abling the security mode, passing broadcast packets, etc. In addition, comparison on destination address, source address,
or both can be selected. The system can also qualify learning mode on a per port basis.
Note: Bit D0 is only for the port CAMs, and not for the shared CAMs
D0
D1
D2
D3
D4
D5
D6
D7
Bit
R/W
R/W
R/W
R/W
R
R/W
R/W
R
R/W
EC7
res
D7
D7
LME
SME
BCE
MCE
SAM
ESA
EDA
resv
Symbol
(Continued)
EC6
EDA
D6
D6
Learning Mode
0: Disable Learn Mode for port CAMs.
1: Enable Learn Mode for port CAMs.
Security Mode
0: Disable Security Mode.
1: Enable Security Mode.
Accept Broadcast: Enables the repeater to pass/repeat a packet with an all 1's
destination address.
0: Replace the broadcast packets with random packets.
1: Pass broadcast packets.
Note: SA mismatch is still valid for broadcast packets.
Accept Multicast: Enables the repeater to pass/repeat a packet with the LSB of
'1' in the most significant byte of the destination address.
0: Replace the multicast packets with random packets.
1: Pass multicast packets.
Note: SA mismatch is still valid for multicast packets.
Source Address Match/Mismatch
0: Source address match occurred for the packet.
1: Source address mismatch occurred for the packet.
Source Address Security
0: Do not employ source address to implement security.
1: Employ source address to implement security.
Destination Address Security
0: Do not employ destination address to implement security.
1: Employ destination address to implement security.
Reserved for Future Use
reads as a logic 0
EC5
ESA
D5
D5
SAM
EC4
D4
D4
67
MCE
EC3
D3
D3
Description
BCE
EC2
D2
D2
SME
EC1
D1
D1
EC0
LME
D0
D0
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