w83c554f Winbond Electronics Corp America, w83c554f Datasheet - Page 92
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w83c554f
Manufacturer Part Number
w83c554f
Description
System I/o Controller With Pci Arbiter & Ultradma/33 Ide Controller
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83C554F.pdf
(156 pages)
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W83C554F
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W83C554F
Scatter/Gather Status Registers
Type:
Bit Description:
WINBOND ELECTRONICS CORP. AMERICA
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bit 1:
Bit 0:
Read only
NEXT_LINK_NULL. Next Link Null Indicator.
Reserved.
ISSUE_IRQ13_EOP. Issue IRQ13 on last buffer. When bit 5 = 0, EOP is issued on last buffer;
when bit 5 = 1, IRQ13 is issued.
Reserved.
SG_BASE_REQ_FULL. Scatter/Gather Base Register Status. When bit 3 = 0, the base
register is empty; when bit 3 = 1, the base register has a buffer link loaded.
SG_CUR_REG_FULL. Scatter/Gather Current Register Status. When bit 2 = 0, the current
register is empty; when bit 2 = 1, the current register has a buffer link loaded.
Reserved.
SG_ACTIVE. Scatter/Gather Active. This bit indicates the current Scatter/Gather transfer
status. Bit 0 is set to 1 after a Scatter/Gather Start Command is issued. When bit 0 = 0, it
means there is no Scatter/Gather operation.
Register Information
90
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