w83626f Winbond Electronics Corp America, w83626f Datasheet - Page 21

• Manufacturer Part Number: w83626f
• Description: Lpc To Isa Bridge Set
• Manufacturer: Winbond Electronics Corp America

CR48 (DMA CYCLES FAST MODE SELECT, Default 0x00)
The Fast mode is used to improve the performance of transferable interface, because some applications
will do fast transaction. To set the suitable bits to decide on specify range or all ISA cycles will meet the
requested DMA cycles.
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bit 1:
Bit 0:
= 0 Normal used.
= 1 The DMA cycles of channel 7 is in fast mode.
= 0 Normal used.
= 1 The DMA cycles of channel 6 is in fast mode.
= 0 Normal used.
= 1 The DMA cycles of channel 5 is in fast mode.
Reserved.
= 0 Normal used.
= 1 The DMA cycles of channel 3 is in fast mode.
= 0 Normal used.
= 1 The DMA cycles of channel 2 is in fast mode.
= 0 Normal used.
= 1 The DMA cycles of channel 1 is in fast mode.
= 0 Normal used.
= 1 The DMA cycles of channel 0 is in fast mode.
W83626F/W83626D/W83626G
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Publication Release Date: May 25, 2005
(Write only)
Revision A1