COM20020I3V-DZD SMSC, COM20020I3V-DZD Datasheet - Page 38

• Manufacturer Part Number: COM20020I3V-DZD
• Description: IC CTRLR LAN UNIV 2KX8 28-PLCC
• Manufacturer: SMSC
• Series: ARCNETr

Specifications of COM20020I3V-DZD

• Controller Type: ARCNET Controller
• Interface: Differential
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 20mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1002-5

Revision 12-05-06
BIT
1,0
Reconfiguration Timer
1, 0
BIT NAME
RCNTM1,0
SYMBOL
DATASHEET
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
0
0
1
1
Note*: The node ID value 255 must exist in the network for 26.25
Page 38
mS timeout to be valid.
RCNTM0
0
1
0
1
5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
DESCRIPTION
Time Out Period
420 mS
105 mS
52.5 mS
26.25 mS*
Max Node Count
Up to 255 nodes
Up to 64 nodes
Up to 32 nodes
Up to 16 nodes
SMSC COM20020I Rev D
Datasheet