DP83820BVUW National Semiconductor, DP83820BVUW Datasheet - Page 58

• Manufacturer Part Number: DP83820BVUW
• Description: IC INTERFACE CONTROLLER 208-PQFP
• Manufacturer: National Semiconductor

Specifications of DP83820BVUW

• Controller Type: Ethernet Controller, MAC/BIU
• Interface: IEEE 802.3
• Voltage - Supply: 3.3V
• Current - Supply: 150mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 208-MQFP, 208-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *DP83820BVUW

4.0 Register Set
4.2.21 Receive Filter/Match Data Register
The RFDR register is used for reading from and writing to the internal receive filter registers, the pattern buffer memory,
and the hash table memory.
31-18
17-16
15-0
9-0
bit
RFADDR
RFDATA
BMASK
tag
Offset: 004Ch
(Continued)
Tag: RFDR
Receive Filter Extended
Register Address
Byte mask
Receive Filter Data
description
Access: Read Write
Selects which internal receive filter register is accessible via RFDR:
Perfect Match Register (PMATCH)
000h
002h
004h
Pattern Count Registers (PCOUNT)
006h
008h
SecureOn Password Register (SOPAS)
00Ah
00Ch
00Eh
Filter Memory
100h-3FEh
unused
Used as byte mask values for pattern match template data.
Size: 32 bits
- PMATCH octets 1-0
- PMATCH octets 3-2
- PMATCH octets 5-4
- PCOUNT1, PCOUNT0
- PCOUNT3, PCOUNT2
- SOPAS octets 1-0
- SOPAS octets 5-4
- SOPAS octets 3-2
58
- Rx filter memory (Hash table/pattern buffers)
usage
Hard Reset: 00000000h
Soft Reset: 00000000h
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