目前分類:各種規格 (41)
- Oct 22 Tue 2019 09:44
PPPOE 協定
- Aug 21 Wed 2019 13:19
常用AT命令手冊:2通話操作
- Aug 21 Wed 2019 13:15
常用AT命令手冊:1常用操作
常用AT命令手冊
1、常用操作
- Aug 21 Wed 2019 11:49
DSSS DSDS DSDA
- Mar 14 Wed 2018 15:51
OpenDataPlane (ODP) 用户指南
OpenDataPlane (ODP) 用户指南
- Mar 14 Wed 2018 13:51
MoChi 架構
MoChi 架構
概觀
SoC的日子已經過時了。成本以及生產所必需價格正在對收益產生影響。為了應對這些挑戰,Marvell正在將一種開創性的方法應用於集成電路(IC)設計中,稱為MoChi架構。
模組化晶片概念MoChi架構是開發虛擬SoC(VSoC)的一種智能方式。MoChi方法不是將盡可能多的功能集成到一個集成電路中,而是著重於將SoC分解為具有特定功能的成本優化的模組化晶片,這些晶片可以輕鬆無縫地相互連接,而不會影響整個系統的性能。
提供計算和非計算功能的分離,這種方法提供了將不同MoChi模組的組合互連的能力,這些模組可以互相“交談”,就好像它們集成在一塊矽片上一樣。從計算功能中劃分標準和外圍功能使得MoChi設備可以在更長的時間段內用於更廣泛的應用,從而大幅節省成本,提高靈活性並縮短產品上市時間。
- Mar 14 Wed 2018 13:32
SR-IOV
SR-IOV 簡介
SR-IOV 技術是一種基於硬體的虛擬化解決方案,可提高性能和可伸縮性。SR-IOV 標準允許在虛擬機器之間高效共用 PCIe(Peripheral Component Interconnect Express,快速外設元件互連)設備,並且它是在硬體中實現的,可以獲得能夠與本機性能媲美的 I/O 性能。SR-IOV 規範定義了新的標準,根據該標準,創建的新設備可允許將虛擬機器直接連接到 I/O 設備。
SR-IOV 規範由 PCI-SIG 在 http://www.pcisig.com 上進行定義和維護。
單個 I/O 資源可由許多虛擬機器共用。共用的設備將提供專用的資源,並且還使用共用的通用資源。這樣,每個虛擬機器都可訪問唯一的資源。因此,啟用了 SR-IOV 並且具有適當的硬體和 OS 支援的 PCIe 設備(例如乙太網埠)可以顯示為多個單獨的物理設備,每個都具有自己的 PCIe 配置空間。
- Mar 14 Wed 2018 13:12
Serdes
- Dec 27 Tue 2016 15:30
Extended Channel Interpretations (ECI) Encoding
ECI | Reference |
---|---|
000000 | Represents the default encodation scheme |
000001 | Represents the GLI encodation scheme of a number of symbologies with characters 0 to 127 being identical to those of ISO/IEC 646 : 1991 IRV (equivalent to ANSI X3.4) and characters 128 to 255 being identical to those values of ISO 8859-1 |
000002 | An equivalent code table to ECI 000000, without the return-to-GLI 0 logic. It is the default encodation scheme for encoders fully compliant with this standard. |
000003 | ISO/IEC 8859-1 Latin alphabet No. 1 |
000004 | ISO/IEC 8859-2 Latin alphabet No. 2 |
000005 | ISO/IEC 8859-3 Latin alphabet No. 3 |
000006 | ISO/IEC 8859-4 Latin alphabet No. 4 |
000007 | ISO/IEC 8859-5 Latin/Cyrillic alphabet |
000008 | ISO/IEC 8859-6 Latin/Arabic alphabet |
000009 | ISO/IEC 8859-7 Latin/Greek alphabet |
000010 | ISO/IEC 8859-8 Latin/Hebrew alphabet |
000011 | ISO/IEC 8859-9 Latin alphabet No. 5 |
000012 | ISO/IEC 8859-10 Latin alphabet No. 6 |
000013 | ISO/IEC 8859-11 Latin/Thai alphabet |
000014 | Reserved |
000015 | ISO/IEC 8859-13 Latin alphabet No. 7 (Baltic Rim) |
000016 | ISO/IEC 8859-14 Latin alphabet No. 8 (Celtic) |
000017 | ISO/IEC 8859-15 Latin alphabet No. 9 |
000018 | ISO/IEC 8859-16 Latin alphabet No. 10 |
000019 | Reserved |
000020 | Shift JIS (JIS X 0208 Annex 1 + JIS X 0201) |
000021 | Windows 1250 Latin 2 (Central Europe) |
000022 | Windows 1251 Cyrillic |
000023 | Windows 1252 Latin 1 |
000024 | Windows 1256 Arabic |
000025 | ISO/IEC 10646 UCS-2 (High order byte first) |
000026 | ISO/IEC 10646 UTF-8 (See information above) |
000027 | ISO/IEC 646:1991 International Reference Version of ISO 7-bit coded character set |
000028 | Big 5 (Taiwan) Chinese Character Set |
000029 | GB (PRC) Chinese Character Set |
000030 | Korean Character Set |
https://strokescribe.com/en/ECI.html
http://www.ibm.com/support/knowledgecenter/SSBJG3_2.5.0/com.ibm.gen_studug.doc/c_grd_barcodes_qr_code.htm
- Mar 15 Tue 2016 13:47
FM的RDS/RBDS
原文
http://ownly-kuan.blogspot.tw/2013/11/rdsrbds.html
http://priv.tw/blog/archives/406/fm-rds/
- Mar 15 Tue 2016 13:42
IEEE 802.11 a/b/g/n/ac 有什麼差別
原文
http://bryceknowhow.blogspot.tw/2013/11/wi-fi-ieee-80211-abgnac.html
https://zh.wikipedia.org/wiki/IEEE_802.11
- Mar 15 Tue 2016 13:32
藍牙4.1深入詳解
原文
http://sina.com.hk/news/article/20131223/0/5/0/-38766.html?cf=o.digital
http://www.2cm.com.tw/markettrend_content.asp?sn=1406230028
- Mar 15 Tue 2016 13:30
藍牙多模應用與認證規範面面觀
原文
http://www.technical-direct.com/2011-09/%E8%97%8D%E7%89%99%E5%A4%9A%E6%A8%A1%E6%87%89%E7%94%A8%E8%88%87%E8%AA%8D%E8%AD%89%E8%A6%8F%E7%AF%84%E9%9D%A2%E9%9D%A2%E8%A7%80/
- Oct 30 Fri 2015 16:10
PCIE ASPM
http://www.mem.com.tw/article_content.asp?sn=0701020591
標準平行的PCI介面納入許多遵循PCI匯流排電源管理介面規格的省電功能,因此,除了根聯合體(Root Complex)之外,其他所有的PCIe裝置都必須支援這些省電功能。此外,PCIe定義一套名為主動式電源管理(Active State Power Management, ASPM)的機制。主動式電源管理則是進一步擴充PCI電源的管理規格。ASPM與標準PCI電源管理規格之間的主要差別在於ASPM是自動運作的機制。
- Jan 09 Thu 2014 13:26
BMP 簡介
《簡介》
點陣圖(bitmap)格式是 Windows 採用的圖像檔案儲存格式,在 Windows 環境下運行的所有圖像處理軟件都支持這種格式。Windows 3.0 以前的 BMP 格式與顯示設備有關,因此稱為設備相關點陣圖(Device-Dependent Bitmap, DDB)格式。Windows 3.0 以後的 BMP 格式則與顯示設備無關(Device-Independent Bitmap, DIB),目的是為了讓 Windows 能夠在任何類型的顯示設備上顯示點陣圖檔案。點陣圖檔案的預設副檔名是 BMP 或 bmp。
- Oct 25 Fri 2013 09:04
醫療數位影像傳輸協定(DICOM,Digital Imaging and Communications in Medicine)
- Jan 02 Wed 2013 17:14
YUV pixel formats 各種YUV 格式排列
詳細內容請看上網址
Packed YUV Formats
Label | FOURCC in Hex | Bits per pixel | Description |
AYUV | 0x56555941 | 32 | Combined YUV and alpha |
CLJR | 0x524A4C43 | 8 | Cirrus Logic format with 4 pixels packed into a u_int32. A form of YUV 4:1:1 wiht less than 8 bits per Y, U and V sample. |
cyuv | 0x76757963 | 16 | Essentially a copy of UYVY except that the sense of the height is reversed - the image is upside down with respect to the UYVY version. |
GREY | 0x59455247 | 8 | Apparently a duplicate of Y800 (and also, presumably, "Y8 ") |
IRAW | 0x57615349 | ? | Intel uncompressed YUV. I have no information on this format - can you help? |
IUYV | 0x56595549 | 16 | Interlaced version of UYVY (line order 0, 2, 4,....,1, 3, 5....) registered by Silviu Brinzei of LEAD Technologies. |
IY41 | 0x31345949 | 12 | Interlaced version of Y41P (line order 0, 2, 4,....,1, 3, 5....) registered by Silviu Brinzei of LEAD Technologies. |
IYU1 | 0x31555949 | 12 | 12 bit format used in mode 2 of the IEEE 1394 Digital Camera 1.04 spec. This is equivalent to Y411 |
IYU2 | 0x32555949 | 24 | 24 bit format used in mode 0 of the IEEE 1394 Digital Camera 1.04 spec |
HDYC | 0x43594448 | 16 | YUV 4:2:2 (Y sample at every pixel, U and V sampled at every second pixel horizontally on each line). A macropixel contains 2 pixels in 1 u_int32. This is a suplicate of UYVY except that the color components use the BT709 color space (as used in HD video). |
UYNV | 0x564E5955 | 16 | A direct copy of UYVY registered by NVidia to work around problems in some old codecs which did not like hardware which offered more than 2 UYVY surfaces. |
UYVP | 0x50565955 | 24? | YCbCr 4:2:2 extended precision 10-bits per component in U0Y0V0Y1 order. Registered by Rich Ehlers of Evans & Sutherland. (Awaiting confirmation of component packing structure) |
UYVY | 0x59565955 | 16 | YUV 4:2:2 (Y sample at every pixel, U and V sampled at every second pixel horizontally on each line). A macropixel contains 2 pixels in 1 u_int32. |
V210 | 0x30313256 | 32 | 10-bit 4:2:2 YCrCb equivalent to the Quicktime format of the same name. |
V422 | 0x32323456 | 16 | I am told that this is an upside down version of UYVY. |
V655 | 0x35353656 | 16? | 16 bit YUV 4:2:2 format registered by Vitec Multimedia. I have no information on the component ordering or packing. |
VYUY | 0x59555956 | ? | ATI Packed YUV Data (format unknown but you can get hold of a codec supporting it here) |
Y422 | 0x32323459 | 16 | Direct copy of UYVY as used by ADS Technologies Pyro WebCam firewire camera. |
YUY2 | 0x32595559 | 16 | YUV 4:2:2 as for UYVY but with different component ordering within the u_int32 macropixel. |
YUYV | 0x56595559 | 16 | Duplicate of YUY2 |
YUNV | 0x564E5559 | 16 | A direct copy of YUY2 registered by NVidia to work around problems in some old codecs which did not like hardware which offered more than 2 YUY2 surfaces. |
YVYU | 0x55595659 | 16 | YUV 4:2:2 as for UYVY but with different component ordering within the u_int32 macropixel. |
Y41P | 0x50313459 | 12 | YUV 4:1:1 (Y sample at every pixel, U and V sampled at every fourth pixel horizontally on each line). A macropixel contains 8 pixels in 3 u_int32s. |
Y411 | 0x31313459 | 12 | YUV 4:1:1 with a packed, 6 byte/4 pixel macroblock structure. |
Y211 | 0x31313259 | 8 | Packed YUV format with Y sampled at every second pixel across each line and U and V sampled at every fourth pixel. |
Y41T | 0x54313459 | 12 | Format as for Y41P but the lsb of each Y component is used to signal pixel transparency . |
Y42T | 0x54323459 | 16 | Format as for UYVY but the lsb of each Y component is used to signal pixel transparency . |
YUVP | 0x50565559 | 24? | YCbCr 4:2:2 extended precision 10-bits per component in Y0U0Y1V0 order. Registered by Rich Ehlers of Evans & Sutherland. |
Y800 | 0x30303859 | 8 | Simple, single Y plane for monochrome images. |
Y8 | 0x20203859 | 8 | Duplicate of Y800 as far as I can see. |
Y16 | 0x20363159 | 16 | 16-bit uncompressed greyscale image. |
- Feb 24 Fri 2012 10:10
點陣圖(Bitmap)檔案格式[轉貼]