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Ricoh R5C843

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Ricoh PC Card Controller with Media Card Interface and FireWire Controller

This is a single chip, offering six PCI functions: PC Card bridge, SD/SDIO/MMC/MMC plus, MS, MSPro, xD and FireWire (400 Mbit/s IEEE 1394a) controller.

Features

  • Chipset: 5C843
  • Interface: PCI Bus
  • Functions:
    • PC-Card Controller: PCI 1180:0476
    • FireWire 400 (IEEE 1394a): 1180:0832
    • 4-in-1 card host: PCI 1180:0822
      • SD/SDIO/MMC Host: PCI 1180:0843
      • Memory Stick MS/MSPro: PCI 1180:0592
      • xD-Picture Card: PCI 1180:0852

Drivers Status

PC Card

(32 bit) Card Bus tested, ok. (16 bit) PCMCIA not tested.

FireWire (IEEE 1394)

Modules ohci1394, ieee1394, eth1394 and raw1394 modules loads fine, eth1394 detected as 'eth1' and device /dev/raw1394. Tested with kino and DV-camera - it works.

SD Card reader

Worked out-of-the-box using Kubuntu 7.04 (kernel 2.6.20)

Did not work with archlinux "Don't panic" (kernel 2.6.22) Loaded modules: sdhci, mmc_core, mmc_block

Worked with CentOS 5 (2.6.18), but filenames were all uppercase

Worked better with Fedora 7 (2.6.22)

Worked in Gentoo with ricoh_mmc, mmc_core, and sdhci modules

Memory Stick and xD Picture Card reader

Not used in Thinkpads (controller functionality disabled).

Links & ressources

  • Ricoh Product Sheet [1]

ThinkPads this chip may be found in

Retrieved from "http://www.thinkwiki.org/wiki/Ricoh_R5C843"
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