home *** CD-ROM | disk | FTP | other *** search
/ Developer CD Series 1992 June: ROMin Holiday / ADC Developer CD (1992-06) (''ROMin Holiday'')_iso / Developer Connection - 06-1992.iso / Developer Essentials / Technical Docs / Macintosh Technical Notes / Technical Notes Stack / Tech Note PICTs / Tech Note 309 - Figure 1 (.png) < prev    next >
MacDraw  |  1991-12-07  |  3.4 KB  |  816x1056  |  8-bit (256 colors)  |  [PICT/MDPL]
   ocr: MAC header AC FC DA SA AC: Frame Access check control fieldDA: fieldF( ISA<bit47>=1 Destination addressSA: Source address Routing informationfield (RC) 2(n+1) bytes (0958) RC SN1 SN2 SNn 2 4 2 2 bytes SN: Segment (ring) numb n: Number of source bridge Routing B L D LF r controlfield 3 5 1 4 3 bits B:E Broadcast bits L: Length bits (max == 2+a) D:D Direction LF: Largest frame rreserved Figure 1 Routing Information and Routing Control Fields