dp83261 National Semiconductor Corporation, dp83261 Datasheet - Page 38

• Manufacturer Part Number: dp83261
• Description: Bmac Device Fddi Media Access Controller
• Manufacturer: National Semiconductor Corporation

D0
D1
D2 – 4
D5
D6
D7
6 0 Control Information
Ring Event Latch Register 1 (RELR1)
The Ring Event Latch Register 1 (RELR1) captures the progress of the Beacon and Claim Processes During the Beacon
Process it records reception of an Other Beacon or a My Beacon It also identifies Claim frames as Higher Lower or My
Claim Each bit may be masked via the Ring Event Mask Register 1 (REMR1)
ACCESS RULES
REGISTER BITS
Bit
LOCLM
D7
Address
12h
OTRBCN
MYBCN
RES
MYCLM
HICLM
LOCLM
Symbol
HICLM
D6
Other Beacon Received Indicates that an Other Beacon frame was received
My Beacon Received Indicates that a My Beacon frame was received
Reserved
My Claim Received Indicates that a My Claim frame was received (This includes the comparison
between the T Bid Rec and TREQ as specified in the standard)
Higher Claim Received Indicates that a Higher Claim frame was received
Lower Claim Received Indicates that a Lower Claim frame was received
MYCLM
Always
D5
Read
RES
D4
(Continued)
RES
Condition
D3
Write
RES
D2
MYBCN
D1
38
Description
OTRBCN
D0