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DP83266 Datasheet(PDF) 101 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83266
Description  MACSITM Device (FDDI Media Access Controller and System Interface)
PDF  152 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83266 Datasheet(HTML) 101 Page - National Semiconductor (TI)

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70 Control Information (Continued)
Limit Data Register (LDR)
The Limit Data Register (LDR) is used to hold the 8 least-significant Limit RAM data bits transferred in an LMOP service function
(The most-significant data bit is in the Limit Address Register)
This register is not altered upon reset
Access Rules
Address
Read
Write
10Dh
Always
Always
Register Bits
D7
D6
D5
D4
D3
D2
D1
D0
LRD7
LRD6
LRD5
LRD4
LRD3
LRD2
LRD1
LRD0
Bit
Symbol
Description
D7–D0
LRD7–0
Limit RAM Data Bit 7 – 0
This bit contains the least-significant data bit read or written from or to a Limit
RAM Register in an LMOP service function Bit LDR7 is a ‘‘don’t care’’ when using small (1 kByte)
queues
101



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