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F81867D 参数 Datasheet PDF下载

F81867D图片预览
型号: F81867D
PDF下载: 下载PDF文件 查看货源
内容描述: 6个UART μSuper IO 128字节FIFO和省电功能 [6 UARTs μSuper IO With 128 Bytes FIFO and Power Saving Functions]
分类和应用: 先进先出芯片
文件页数/大小: 315 页 / 2394 K
品牌: FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
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F81867  
IRQ Channel Select Register Index 70h  
Bit  
7-4  
3-0  
Name  
R/W Reset Default  
Description  
Description  
Description  
Reserved  
-
-
-
Reserved.  
LRESET#  
SELFDCIRQ  
R/W  
06h Select the IRQ channel for FDC.  
DMA Channel Select Register Index 74h  
Bit  
7-3  
2-0  
Name  
R/W Reset Default  
Reserved  
-
-
-
Reserved.  
LRESET#  
SELFDCDMA  
R/W  
010 Select the DMA channel for FDC.  
FDD Mode Register Index F0h  
Bit  
Name  
R/W Reset Default  
7-5  
Reserved  
-
-
-
Reserved.  
FDC Software Write Protect.  
4
FDC_SW_WP  
IF_MODE  
R/W LRESET#  
0
0: Write protect is determined by WPT# pin.  
1: Enable Write Protect.  
00: Model 30 mode.  
01: PS/2 mode.  
3-2  
R/W LRESET#  
R/W LRESET#  
11  
10: Reserved.  
11: AT mode (default).  
0: enable burst mode.  
1
0
FDMAMODE  
Reserved  
1
0
1: non-busrt mode (default).  
R/W  
-
Reserved.  
FDD Drive Type Register Index F2h  
Bit  
7-2  
1-0  
Name  
R/W Reset Default  
Description  
Reserved  
FDD_TYPE  
-
-
-
Reserved.  
LRESET#  
R/W  
11  
FDD drive type.  
FDD Selection Register Index F4h  
Bit  
Name  
R/W Reset Default  
Description  
7-5  
Reserved  
-
-
-
Reserved.  
Data rate table select, refer to table A.  
00: select regular drives and 2.88 format.  
01: reserved.  
4-3  
FDD_DRT  
R/W LRESET#  
00  
10: 2 mega tape.  
11: reserved.  
2
Reserved  
FDD_DT  
-
-
-
Reserved.  
1-0  
R/W LRESET#  
00  
Drive type select, refer to table B.  
TABLE A  
Data Rate Table Select  
FDD_DRT[1] FDD_DRT[0]  
Data Rate  
DATARATE1 DATARATE0  
Selected Data Rate  
MFM FM  
DENSEL  
137  
Dec, 2011  
V0.12P  
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