YMF754-V ETC, YMF754-V Datasheet - Page 32

• Manufacturer Part Number: YMF754-V
• Description: DS-1E
• Manufacturer: ETC

YMF754
DS-1E supports PC/PCI and D-DMA protocols to emulate the DMA of SB Pro on the PCI. In addition, DS-
1E supports the old type of interrupts used by ISA and the Serialized IRQ protocol.
The combination of PC/PCI and Serialized IRQ is recommended for DS-1E.
The system block diagram when using Intel chip set is shown below.
The PCI-to-ISA bridge needs to support PC/PCI. IRQ is directly connected to the IRQ input pins on the
PCI-to-ISA bridge.
DS-1E
SERIRQ#
PCREQ#
PCGNT#
IRQ5
IRQ7
IRQ9
IRQ10
IRQ11
(430TX/440BX)
Brigde
North
-32-
Select either protocols
PCI
(PIIX4E)
Bridge
South
Address/Data
Control
June 28, 1999