w83c553f Winbond Electronics Corp America, w83c553f Datasheet - Page 95

• Manufacturer Part Number: w83c553f
• Description: System I/o Controller With Pci Arbiter
• Manufacturer: Winbond Electronics Corp America

W83C553F
Scatter/Gather Status Registers
Type:
Bit Description:
WINBOND SYSTEMS LABORATORY
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.
Electrical Specifications
92