LWN: Comments on "SDIO support coming"

SDIO support coming

HalfMoon — Fri, 03 Aug 2007 07:57:19 +0000

SPI (20 Mbit/s)

The fastest SPI chips I've seen are 70 Mbits, but it's true that most of them aren't quite that speedy. On the other hand, most SDIO cards aren't that fast either (and don't use 4bit parallel signaling) ... in fact, every SDIO card supports SPI.

SDIO support coming new link

wawjohn — Wed, 01 Aug 2007 20:05:25 +0000

This link should work better: http://www.sdcard.org/about/sdio/

SDIO support coming

dvrabel — Fri, 27 Jul 2007 08:42:11 +0000

In the embedded space where the alternatives are SPI (20 Mbit/s), UART (8 Mbit/s) and I2C (400 kbit/s), 100 Mbit/s is fast. Interconnects like PCI, PCIe and USB2.0 consume too much power or require too many pins.

SDIO support coming

ken — Thu, 26 Jul 2007 19:18:31 +0000

In the spec they brag about 100Mb that is not "high speed"

SDIO support coming

dvrabel — Thu, 26 Jul 2007 10:57:11 +0000

SDIO is not just for plug-in cards; it's rapidly becoming a common "high speed" chip interconnect in embedded devices (like mobile phones or media players) for things like WiFi etc.