STANDARD MICROSYSTEMS CORPORATION ARCnet PC270E NIC Type ARCnet Transfer Rate 2.5Mbps Data Bus 8-bit ISA Topology Star Linear Bus Wiring Type Unshielded twisted pair Boot ROM Available [Image] NODE ADDRESS 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:Note 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 IRQ JP1D JP1E JP1F JP1G JP1H 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 BASE MEMORY ADDRESS & BOOT ROM ADDRESS Base Address Boot ROM SW2/1 SW2/2 SW2/3 SW2/4 SW2/5 Address » D0000 - D2000 - On Off Off On On D07FFh D3FFFh C0000 - C2000 - On On On On On C07FFh C3FFFh C0800 - C2000 - On On On On Off C0FFFh C3FFFh C1000 - C2000 - On On On Off On C17FFh C3FFFh C1800 - C2000 - On On On Off Off C1FFFh C3FFFh C4000 - C6000 - On On Off On On C47FFh C7FFFh C4800 - C6000 - On On Off On Off C4FFFh C7FFFh C5000 - C6000 - On On Off Off On C57FFh C7FFFh C5800 - C6000 - On On Off Off Off C5FFFh C7FFFh CC000 - CE000 - On Off On On On CC7FFh CFFFFh CC800 - CE000 - On Off On On Off CCFFFh CFFFFh CD000 - CE000 - On Off On Off On CD7FFh CFFFFh CD800 - CE000 - On Off On Off Off CDFFFh CFFFFh D0800 - D2000 - On Off Off On Off D0FFFh D3FFFh D1000 - D2000 - On Off Off Off On D17FFh D3FFFh D1800 - D2000 - On Off Off Off Off D1FFFh D3FFFh D4000 - D6000 - Off On On On On D47FFh D7FFFh D4800 - D6000 - Off On On On Off D4FFFh D7FFFh D5000 - D6000 - Off On On Off On D57FFh D7FFFh D5800 - D6000 - Off On On Off Off D5FFFh D7FFFh D8000 - DA000 - Off On Off On On D87FFh DBFFFh D8800 - DA000 - Off On Off On Off D8FFFh DBFFFh D9000 - DA000 - Off On Off Off On D97FFh DBFFFh D9800 - DA000 - Off On Off Off Off D9FFFh DBFFFh DC000 - DE000 - Off Off On On On DC7FFh DFFFFh DC800 - DE000 - Off Off On On Off DCFFFh DFFFFh DD000 - DE000 - Off Off On Off On DD7FFh DFFFFh DD800 - DE000 - Off Off On Off Off DDFFFh DFFFFh E0000 - E2000 - Off Off Off On On E07FFh E2FFFh E0800 - E2000 - Off Off Off On Off E0FFFh E2FFFh E1000 - E2000 - Off Off Off Off On E17FFh E2FFFh E1800 - E2000 - Off Off Off Off Off E1FFFh E2FFFh RESPONSE AND RECONFIGURATION TIMEOUTS Response Time Idle Time Reconfig. Time JP1A JP1B » 78 m 86 m 840 m Closed Closed 285 m 316 m 1680 m Open Closed 563 m 624 m 1680 m Closed Open 1190 m 1237 m 1680 m Open Open BOOT ROM Setting JP1C » Disabled Open Enabled Closed I/O BASE ADDRESS Address SW1/1 SW1/2 SW1/3 260h On On On 290h On On Off 2E0h On Off On 2F0h On Off Off 300h Off On On 350h Off On Off 380h Off Off On 3E0h Off Off Off DIAGNOSTIC LED(S) LED Color Status Condition LED1 Red On/Blinking Data is being transmitted or receiving LED1 Red Off Data is not being transmitted or receiving LED2 Green On Card is configured correctly LED2 Green Blinking Card is reconfiguring LED2 Green Off Card is defective or not configured correctly