哪位大侠有SDIO协议的详细spec.

miniinfo

拜谢了！我这里只有简单的，见附件。
【文件名】:08324@52RD_Simplified_SDIO_Card_Spec.pdf
【格　式】:pdf
【大　小】:436K
【简　介】:
【目　录】:



1. General Description
The SDIO (SD Input/Output) card is based on and compatible with the SD memory card. This compatibility
includes mechanical, electrical, power, signaling and software. The intent of the SDIO card is to provide
high-speed data I/O with low power consumption for mobile electronic devices. A primary goal is that an SDIO
card inserted into a non-SDIO aware host shall cause no physical damage or disruption of that host or it¡¯s
software. In this case, the SDIO card should simply be ignored. Once inserted into an SDIO aware host, the
detection of the card proceeds via the normal means described in this specification with some extensions. In this
state, the SDIO card is idle and draws a small amount of power (15 mA averaged over 1 second). During the
normal initialization and interrogation of the card by the host, the card identifies itself as an SDIO card. The host
software then obtains the card information in a tuple (linked list) format and determines if that card¡¯s I/O
function(s) are acceptable to activate. This decision is based on such parameters as power requirements or the
availability of appropriate software drivers. If the card is acceptable, it is allowed to power up fully and start the
I/O function(s) built into it.

1.1 SDIO Features

*  Targeted for portable and stationary applications
*  Minimal or no modification to SD Physical bus is required
*  Minimal change to memory driver software
*  Extended physical form factor available for specialized applications
*  Plug and play (PnP) support
*  Multi-function support including multiple I/O and combined I/O and memory
*  Up to 7 I/O functions plus one memory supported on one card.
*  Allows card to interrupt host  
*  Operational Voltage range: 2.7-3.6V (Operational Voltage is used for Initialization)
* Application Specifications for Standard SDIO Functions.
*  Multiple Form Factors:
* Full-Size SDIO

miniinfo

不好意思啊，俺的币币太少了，想钱想疯了。

mengnan

妈的,,自己要,还要钱,,去死!!

有也不会给你!!!

miniinfo

靠，你他妈的楼上滚蛋，去吃屎！

ternal

LZ这样确实不好，没有币，多发贴不就有了[em01]

kitty1210

看不了啊！！！

weishiding

没有比就发帖

ghost2star

回帖 赚币[em01]

啥东西啊