YMF744B ETC [List of Unclassifed Manufacturers], YMF744B Datasheet - Page 17

• Manufacturer Part Number: YMF744B
• Description: DS-1S
• Manufacturer: ETC [List of Unclassifed Manufacturers]

YMF744B
34h: Capability Register Pointer
3Ch: Interrupt Line
3Dh: Interrupt Pin
3Eh: Minimum Grant
b[7:0] ..........Capability Register Pointer
b[7:0] ..........Interrupt Line
b[7:0] ..........Interrupt Pin
b[7:0] ..........Minimum Grant
This register indicates the offset address of the Capabilities register in the PCI Configuration register
when 58-59h: ACPI Mode register, ACPI bit is “0”. DS-1S provides PCI Bus Power Management
registers as the capabilities. The Power Management registers are mapped to 50h - 57h in the PCI
Configuration register, and this register indicates “50h”.
When ACPI bit is “1”, this register indicates “00h”.
This register indicates the interrupt channel that INTA# is assigned to.
DS-1S supports INTA# only. This register is hardwired to 01h.
This register indicates the length of the burst period required by DS-1S.
This register is hardwired to 05h.
b7
b7
b7
b7
Read Only
Default: 50h
Access Bus Width: 8, 16, 32-bit
Read / Write
Default: 00h
Access Bus Width: 8, 16, 32-bit
Read Only
Default: 01h
Access Bus Width: 8, 16, 32-bit
Read Only
Default: 05h
Access Bus Width: 8, 16, 32-bit
b6
b6
b6
b6
Capability Register Pointer
b5
b5
b5
b5
Minimum Grant
Interrupt Line
Interrupt Pin
b4
b4
b4
b4
b3
b3
b3
b3
b2
b2
b2
b2
b1
b1
b1
b1
-17-
b0
b0
b0
b0
February 3, 1999