ymf740c ETC-unknow, ymf740c Datasheet - Page 16

• Manufacturer Part Number: ymf740c
• Description: Ds-1l
• Manufacturer: ETC-unknow

YMF740C
b[7:6] ..........SDMA: Sound Blaster DMA-8 Channel Select
b[10:8] ........SBIRQ: Sound Blaster IRQ Channel Select
b[13:11] ......MPUIRQ: MPU401 IRQ Channel Select
b14..............Reserved Bit
b15..............LAD: Legacy Audio Disable
These bits select the DMA channel for the Sound Blaster Pro block.
These bits select the interrupt channel for the Sound Blaster Pro block.
When MIEN is set to “1”, these bits select the interrupt channel for the MPU401 block.
Same interrupt channels can be assigned to SBIRQ and MPUIRQ.
Hardwire to “0”.
This bit disables the Legacy Audio block.
When this bit is set to “1”, DS-1L does not respond to the I/O Target transaction for legacy I/O address on
the PCI bus.
“0”:
“1”:
“2”:
“3”:
“0”:
“1”:
“2”:
“3”:
“4”:
“5” - “7”:
“0”:
“1”:
“2”:
“3”:
“4”:
“5” - “7”:
“0”: Enables the Legacy Audio block
“1”: Disables the Legacy Audio block
DMA ch0
DMA ch1
reserved
DMA ch3
IRQ5
IRQ7
IRQ9
IRQ10
IRQ11
reserved.
IRQ5
IRQ7
IRQ9
IRQ10
IRQ11
reserved
(default)
(default)
(default)
(default)
-16-
January 14, 1999