3c90x
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3c556 NIC
The Card
The 3com 3c556 chipsets are somewhat compatible with 3c59x and 3c90x cards. 3c556, 3c556B are combo 10/100 LAN + 56K modem MiniPCI cards while 3c555 are 10/100 LAN MiniPCI cards. Other names for the 3c556 include 3CN3AC1556B, 3Com® Megahertz® 10 Mbps LAN CF+ Card.
Programming considerations
- Scan the PCI bus for the device, 3com vendor id 0x10b7, 3c556 device id 0x6055.
- Follow the linux or any other driver.
- The ReadEeprom command value is 0x230 and not 0x80 as on 3c59x and 3c90x cards.
Resources
- Etherboot 3c90x driver
- Linux 3c59x driver, driver operation explained at the top of the file
- FreeBSD 3x90x driver
- 3com product details
- 3c90x and 3x90xB NICs technical reference
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