COM20051I Datasheet, PDF (14/74 Pages) SMSC Corporation – Integrated Microcontroller and ARCNET (ANSI 878.1) Interface

HARDWARE OR
SOFTWARE RESET
OR NO TOKEN FOR
840 MS
SEND RECON
BURST
(765 times 111111110)
TIMEOUT FOR
146µs x
(255 - NODE ID)
NODE DROPS
OFF THE
NETWORK
NO ACTIVITY N
WITHIN 82µs?
Y
TRANSMIT TOKEN
TO NODE = OWN ID
LINE ACTIVITY
DETECTED
Y
WITHIN 74.7µs
N
INCREMENT TOKEN
VALUE AND
TRANSMIT
N
840ms
Y
TIMER
EXPIRED?
SET RECON BIT
IN THE STATUS
REGISTER &
NEW NEXT ID
BIT IN THE
DIAGNOSTIC
STATUS
REGISTER
END NODE
RECONFIGURATION
FIGURE 4 - ARCNET RECONFIGURATION PROCESS
SMSC DS – COM20051I
Page 14
Rev. 03/27/2000