STANDARD MICROSYSTEMS CORPORATION ARCnet PC100 NIC Type ARCnet Transfer Rate 2.5Mbps Data Bus 8-bit ISA Topology Star Wiring Type RG-62A/U 93ohm coaxial Boot ROM Available [Image] NODE ADDRESS SELECTION Node SW2/1 SW2/2 SW2/3 SW2/4 SW2/5 SW2/6 SW2/7 SW2/8 0 - - - - - - - - 1 Off On On On On On On On 2 On Off On On On On On On 3 Off Off On On On On On On 4 On On Off On On On On On 251 Off Off On Off Off Off Off Off 252 On On Off Off Off Off Off Off 253 Off On Off Off Off Off Off Off 254 On Off Off Off Off Off Off Off 255 Off Off Off Off Off Off Off Off Note:Node address 0 is used for messaging between nodes and must not be used. A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. Switch 1 is the Least Significant Bit and switch 8 is the Most Significant Bit. The switches have the following decimal values: switch 1=1, 2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. Turn off the switches and add the values of the off switches to obtain the correct node address. (On=0, Off=1) INTERRUPT REQUEST SELECTION IRQ JP1 JP2 JP3 JP4 JP5 2 Open Open Open Open Closed 3 Open Open Open Closed Open 4 Open Open Closed Open Open 5 Open Closed Open Open Open 7 Closed Open Open Open Open I/O BASE ADDRESS SELECTION Address SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6 2E0h Off On Off Off Off On 2F0h Off On Off Off Off Off 300h Off Off On On On On BUFFER ADDRESS SELECTION Address SW1/7 SW1/8 SW1/9 SW1/10 D000h Off Off On Off C000h Off Off On On E000h Off Off Off On