STANDARD MICROSYSTEMS CORPORATION ================================= ARCNET PC250 NIC Type Arcnet Chipset SMC 9026, 9032 Network Transfer Rate 2.5Mbps Data Bus 8-bit ISA Topology Linear Bus/Star Wire Type Unshielded twisted pair Boot ROM Available +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Label | Function | Label | |-----------------------+-------+--------------------+-------| | Unshielded twisted | J1 | Unshielded twisted | J2 | | pair connector | | pair connector | | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT | |------------------------------------------------------------| | Setting | JP3 | JP4 | JP5 | JP6 | JP7 | |----------+---------+---------+---------+---------+---------| | IRQ2 | Closed | Open | Open | Open | Open | |----------+---------+---------+---------+---------+---------| | IRQ3 | Open | Closed | Open | Open | Open | |----------+---------+---------+---------+---------+---------| | IRQ4 | Open | Open | Closed | Open | Open | |----------+---------+---------+---------+---------+---------| | IRQ5 | Open | Open | Open | Closed | Open | |----------+---------+---------+---------+---------+---------| | IRQ7 | Open | Open | Open | Open | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTENDED RANGE CONFIGURATION | |------------------------------------------------------------| | Response Time | Recon Time | JP1 | JP2 | |-------------------+------------------+----------+----------| |>> | 75.7 uS | 840 mS | Open | Open | |-----+-------------+------------------+----------+----------| | | 283.4 uS | 1.68 S | Closed | Open | |-----+-------------+------------------+----------+----------| | | 561.8 uS | 1.68 S | Open | Closed | |-----+-------------+------------------+----------+----------| | | 1.1186 mS | 1.68 S | Closed | Closed | |------------------------------------------------------------| | Note:This setting should only be changed when the | | length of the ArcNet segments exceed 6000 meters. | +------------------------------------------------------------+ +------------------------------------------------------------+ | NODE ADDRESS | |------------------------------------------------------------| |Setting|SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6|SW1/7|SW1/8| |-------+------+------+------+------+------+-----+-----+-----| | 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 | |-------+------+------+------+------+------+-----+-----+-----| | 5 | Off | On | Off | On | On | On | On | On | |-------+------+------+------+------+------+-----+-----+-----| | 250 | On | Off | On | Off | Off | Off | Off | Off | |-------+------+------+------+------+------+-----+-----+-----| | 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 | |------------------------------------------------------------| | Note: A total of 254 node address settings are | | available. The switches are a binary representation of | | the decimal node addresses. SW1/8 is the Most | | Significant Bit and switch SW1/1 is the Least | | Significant Bit. The switches have the following | | decimal values: SW1/8=128, SW1/7=64, SW1/6=32, | | SW1/5=16, SW1/4=8, SW1/3=4, SW1/2=2, SW1/1=1. Turn off | | the switches and add the values of the switches that | | are off to obtain the correct node ID. (Off=1, On=0) | | | | Node addresses 0 and 255 are reserved and should not be| | used. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BASE I/O ADDRESS | |------------------------------------------------------------| | Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | |-----------+--------+-------+-------+-------+-------+-------| | | 000h | On | On | On | On | On | On | |---+-------+--------+-------+-------+-------+-------+-------| | | 010h | On | On | On | On | On | Off | |---+-------+--------+-------+-------+-------+-------+-------| | | 020h | On | On | On | On | Off | On | |---+-------+--------+-------+-------+-------+-------+-------| | | 030h | On | On | On | On | Off | Off | |---+-------+--------+-------+-------+-------+-------+-------| | | 040h | On | On | On | Off | On | On | |---+-------+--------+-------+-------+-------+-------+-------| |>> | 2E0h | Off | On | Off | Off | Off | On | |---+-------+--------+-------+-------+-------+-------+-------| | | 3B0h | Off | Off | Off | On | Off | Off | |---+-------+--------+-------+-------+-------+-------+-------| | | 3C0h | Off | Off | Off | Off | On | On | |---+-------+--------+-------+-------+-------+-------+-------| | | 3D0h | Off | Off | Off | Off | On | Off | |---+-------+--------+-------+-------+-------+-------+-------| | | 3E0h | Off | Off | Off | Off | Off | On | |---+-------+--------+-------+-------+-------+-------+-------| | | 3F0h | Off | Off | Off | Off | Off | Off | |------------------------------------------------------------| | Note: A total of 64 base address settings are | | available. The switches are a binary representation | | of the decimal memory addresses. SW1/1 is the Most | | Significant Bit and switch SW1/6 is the Least | | Significant Bit. The switches have the following | | decimal values: SW1/1=512, SW1/2=256, SW1/3=128, | | SW1/4=64, SW1/5=32, SW1/6=16. Turn off the switches | | and add the values of the switches that are off to | | obtain the correct memory address. (Off=1, On=0) | +------------------------------------------------------------+ +------------------------------------------------------------+ | SHARED RAM ADDRESS | |------------------------------------------------------------| | Setting | SW2/7 | SW2/8 | SW2/9 | SW2/10 | |------------+-----------+-----------+-----------+-----------| | 00000h | Off | Off | Off | Off | |------------+-----------+-----------+-----------+-----------| | 10000h | Off | Off | Off | On | |------------+-----------+-----------+-----------+-----------| | 20000h | Off | Off | On | Off | |------------+-----------+-----------+-----------+-----------| | 30000h | Off | Off | On | On | |------------+-----------+-----------+-----------+-----------| | 40000h | Off | On | Off | Off | |------------+-----------+-----------+-----------+-----------| | 50000h | Off | On | Off | On | |------------+-----------+-----------+-----------+-----------| | 60000h | Off | On | On | Off | |------------+-----------+-----------+-----------+-----------| | 70000h | Off | On | On | On | |------------+-----------+-----------+-----------+-----------| | 80000h | On | Off | Off | Off | |------------+-----------+-----------+-----------+-----------| | 90000h | On | Off | Off | On | |------------+-----------+-----------+-----------+-----------| | A0000h | On | Off | On | Off | |------------+-----------+-----------+-----------+-----------| | B0000h | On | Off | On | On | |------------+-----------+-----------+-----------+-----------| | C0000h | On | On | Off | Off | |------------+-----------+-----------+-----------+-----------| | D0000h | On | On | Off | On | |------------+-----------+-----------+-----------+-----------| | E0000h | On | On | On | Off | |------------+-----------+-----------+-----------+-----------| | F0000h | On | On | On | On | +------------------------------------------------------------+