国产精品成人VA在线观看-国产乱妇乱子视频在播放-国产日韩精品一区二区三区在线-国模精品一区二区三区

參數(shù)資料
型號(hào): W83877TF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設(shè)及接口
英文描述: Multi-Function I/O Port Controller(用于個(gè)人計(jì)算機(jī)的多功能輸入/輸出口控制器)
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: QFP-100
文件頁數(shù): 43/154頁
文件大?。?/td> 821K
代理商: W83877TF
W83877TF
Publication Release Date: March 1998
- 33 -
Version 0.61
These two bits assign a logical drive number to the tape drive. Drive 0 is not available as a tape drive
and is reserved as the floppy disk boot drive.
TAPE SEL 1
TAPE SEL 0
DRIVE SELECTED
0
0
None
0
1
1
1
0
2
1
1
3
2.2.5 Main Status Register (MS Register) (Read base address + 4)
The Main Status Register is used to control the flow of data between the microprocessor and the
controller. The bit definitions for this register are as follows:
FDD 0 Busy, (D0B = 1), FDD number 0 is in the SEEK mode.
FDD 1 Busy, (D1B = 1), FDD number 1 is in the SEEK mode.
FDD 2 Busy, (D2B = 1), FDD number 2 is in the SEEK mode.
FDD 3 Busy, (D3B = 1), FDD number 3 is in the SEEK mode.
FDC Busy, (CB). A read or write command is in the process when CB = HIGH.
Non-DMA mode, the FDC is in the non-DMA mode, this bit is set only during the
DATA INPUT/OUTPUT, (DIO). If DIO= HIGH then transfer is from Data Register to the processor.
If DIO = LOW then transfer is from processor to Data Register.
Request for Master (RQM). A high on this bit indicates Data Register is ready to send or receive data to or from the processor.
7
6
5
4
3
2
1
0
2.2.6 Data Rate Register (DR Register) (Write base address + 4)
The Data Rate Register is used to set the transfer rate and write precompensation. The data rate of
the FDC is programmed by the CC REGISTER for PC-AT and PS/2 Model 30 and PS/2 mode, and
not by the DR REGISTER. The real data rate is determined by the most recent write to either of the
DR REGISTER or CC REGISTER.
1
2
3
4
5
6
7
0
DRATE0
DRATE1
PRECOMP0
PRECOMP1
PRECOMP2
POWER DOWN
S/W RESET
0
S/W RESET (Bit 7):
This bit is the software reset bit.
相關(guān)PDF資料
PDF描述
W83971D AC97 AUDIO CODEC
W83977AF PLUG & PLAY 1.0A COMPLIANT
W83977EF WINBOND I/O
W83977F PLUG & PLAY 1.0A COMPLIANT
W83977TF-AW I/O chip disk drive adapter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W83877TG 功能描述:IC I/O CONTROLLER 100-PQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)用:PDA,便攜式音頻/視頻,智能電話 接口:I²C,2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤(4x4) 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2
W83910F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IPMI BMC plus H/W Monitor. UART. 5-sets Master/Slave SMBus. for Server PC Application
W83960G (REV. B) 制造商:Nuvoton Technology Corp 功能描述:IC H/W MONITOR 64LQFP
W83971D 制造商:WINBOND 制造商全稱:Winbond 功能描述:AC97 AUDIO CODEC
W83977A 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O