- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377894 > MB86391 (Fujitsu Limited) MPEG2 1chip Audio/Video Encoder PDF資料下載
參數(shù)資料
| 型號： | MB86391 |
| 廠商： | Fujitsu Limited |
| 英文描述： | MPEG2 1chip Audio/Video Encoder |
| 中文描述： | 的MPEG2 1chip音頻/視頻編碼器 |
| 文件頁數(shù)： | 24/69頁 |
| 文件大?。?/td> | 847K |
| 代理商： | MB86391 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁當(dāng)前第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁
FUJITSU LIMITED
Proprietary and Confidential
MB86391 12, November 2001
Product Specification
Rev. 1.1
20
3.1.1.2 SDRAM Accessing
(a) Single write
Fig. 3.1.1.2a:SDRAM access timing (Single write)
(1) The external master asserts XBREQ and requests for bus privilege.
(2) Before granting bus privilege, the MB86391 sets XAS, XRDWR, ADRS27:26,17:2 and D31:0 to
Hi
Z and BUSDIR to 'L' (write direction) and then asserts XBGRNT and XBUSEN to grant bus
privilege to the external master.
(3) The external master outputs valid data to XRDWR, ADRS27:26, 17:2, and D31:0 and asserts the
XAS signal. Note that XBREQ must be asserted up to this cycle.
(4) The MB86391 fetches the address and control signal statuses in (3) and then negates XBGRNT.
At negation of XBGRNT, the external master needs to set XAS, XRDWR and ADRS27:26,17:2 to
Hi
Z.
(5) The MB86391 re
outputs the address fetched in (4) to the SDRAM at the command.
(6) The MB86391 asserts the XREADY signal during the cycle to write data to the SDRAM and
notifies it to the external master.
(7) The MB86391 negates XBUSEN, sets BUSDIR to 'H' (read direction), and resets to normal state.
Note:
After negating XREADY, the next request for bus privilege (asserting XBREQ) is
allowed.
BCLK(O)
XBREQ(I)
XBMREQ(I)
XBGRNT(O)
XAS(I/O)
XRDWR(I/O)
ADRS27:26, 17:2
(I/O)
D31:0(I/O)
XREADY(I/O)
XBUSEN(O)
BUSDIR(O)
XCS5,4,0(O)
All ‘H’
All ‘H’
All ‘H’
All ‘H’
RA
CA
All ‘H’
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MB86434 | 5V Single Power Supply Audio Interface Unit (AIU) |
| MB86434PF | 5V Single Power Supply Audio Interface Unit (AIU) |
| MB86435 | 3 V Single Power Supply Audio Interface Unit (AIU) |
| MB86435PFV | RES 360 OHM 1/16W 5% 0402 SMD |
| MB86602C | SCSI-II Protocol Controller (Differential)(SCSI-II 協(xié)議控制器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MB86391PSC-G-BNDE1 | 制造商:FUJITSU 功能描述: |
| MB86393 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:MPEG-2 Single Chip Audio/Video Encoder |
| MB86434 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:5V Single Power Supply Audio Interface Unit (AIU) |
| MB86434PF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:5V Single Power Supply Audio Interface Unit (AIU) |
| MB86435 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:3 V Single Power Supply Audio Interface Unit (AIU) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。