5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
Datasheet
BIT
BIT NAME
SYMBOL
DESCRIPTION
1,0
Reconfiguration Timer RCNTM1,0
1, 0
These bits are used to program the reconfiguration timer as a
function of maximum node count. These bits set the time out period
of the reconfiguration timer as shown below. The time out periods
shown are for 5 Mbps.
RCNTM1
RCNTM0
Time Out Period
420 mS
Max Node Count
Up to 255 nodes
Up to 64 nodes
Up to 32 nodes
Up to 16 nodes
0
0
1
1
0
1
0
1
105 mS
52.5 mS
26.25 mS*
Note*: The node ID value 255 must exist in the network for 26.25
mS timeout to be valid.
Revision 12-05-06
Page 38
SMSC COM20020I Rev D
DATASHEET