DP83266VF National Semiconductor, DP83266VF Datasheet - Page 57

• Manufacturer Part Number: DP83266VF
• Description: IC MEDIA ACSS CTRL INTF 160PQFP
• Manufacturer: National Semiconductor

Specifications of DP83266VF

• Applications: *
• Voltage - Supply: 4.75 V ~ 5.25 V
• Package / Case: 160-BFQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Interface: -
• Other names: *DP83266VF

D5 –D7
D7 –D0
7 0 Control Information
MAC Mode Register 2 (MCMR2)
The Mode Register 2 (MCMR2) is used to program major operating parameters for the MAC portion of the MACSI device This
register should be programmed only at power-on or after a software or hardware Master Reset
This register is cleared upon reset
Access Rules
Register Bits
MAC Revision Register (MCRev)
The MAC Revision Register (MCRev) contains the revision number of the Ring Engine
Access Rules
Register Bits
Bit
D4
D3
D2
D1
D0
Bit
Address
Address
REV7
RES
005h
007h
D7
D7
RES
AFIE
LLC MCE
SMT MCE
RES
BOSEL
REV(7–0)
Symbol
Symbol
REV6
RES
D6
D6
Always
Always
Read
Read
Reserved
AFLAG Inhibit Enable For MACSI Revision D or later this bit enables the recognition of the AFINHIB
input pin When AFIE equals zero the MACSI device will ignore the AFINHIB input When AFIE equals
one the MACSI will block the internal address recognition flag (AFLAG) between the MAC and System
Interface whenever the User asserts the AFINHIB pin For MACSI Revision prior to D this is a Reserved
bit
LLC Multicast Enable (LLC MCE) When this bit is set the MACSI device will attempt to copy any LLC
frame (as determined by the FC field) which also has the Individual Group address bit set (i e is using a
multicast address) The MAC block will not set the A or C indicators and the copied not copied counters
will not increment
SMT MAC Multicast Enable (SMT MCE) When this bit is set the MACSI device will attempt to copy
any SMT or MAC frame (as determined by the FC field) which also has the Individual Group address bit
set (i e is using a multicast address) The MAC block will not set the A or C indicators and the copied
not copied counters will not increment
Reserved
Bridge Option Select (BOSEL) This bit controls the interconnect of the STRIP and SAT signals from
the System Interface block to the MAC block When BOSEL
Interface is connected to SAT input of the MAC When BOSEL
Interface is connected to the SAT input of the MAC
Revision Number Bits D7– D0 contain the version ID of the MAC State Machines
Software should consult this register for any software-specific issues related to the current version
REV5
RES
D5
D5
Data Ignored
Always
Write
Write
REV4
AFIE
(Continued)
D4
D4
LLC MCE
REV3
D3
D3
SMT MCE
57
REV2
D2
D2
Description
Description
REV1
RES
D1
D1
e
BOSEL
REV0
e
0 the SAT output from the System
D0
D0
1 the STRIP output of the System