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ThunderBird Avenger
TM
PCI Audio SAA7785
Accelerator
Philips Semiconductors Preliminary Specification
1999 Nov 12 44
TABLE 26 Interrupt Line Register - INTLINE (RW)
TABLE 27 Interrupt Pin Register - INTPIN (RO)
TABLE 28 MIN_GNT Register - MINGNT (RO)
PCI CFG 0D7D6D5D4D3D2D1D0
Offset 3Ch
INTLINE[7:0]
POR Value
00000000
Bit Name R/W Function
7:0 INTLINE RW Interrupt Line. The Interrupt Line register is an eight bit register used to com-
municate interrupt line routing information. The value in this register tells
which input of the system interrupt controller(s) the SSA7785 ThunderBird
Avenger™ Device's interrupt pin is connected to. If serial interrupts are
enabled (COMARCH0 Register IRQSER=1) then the INT_LINE register will
be read only and will have the value of all 1's. If Serial Interrupts are disabled
(IRQSER=0) then the INT_LINE register will be readable/writable.
PCI CFG 0D7D6D5D4D3D2D1D0
Offset 3Dh
INTPIN[7:0]
POR Value
00000001
Bit Name R/W Function
7:0 INTPIN RO Interrupt Pin. The interrupt pin register tells which interrupt the SSA7785
ThunderBird Avenger™ device uses. If serial interrupts are enabled
(COMARCH0 Register IRQSER=1) then the INT_PIN register will have the
read only value of all 0's implying that the SSA7785 ThunderBird Avenger™
device does not use any of the PCI Interrupt pins. If Serial Interrupts are dis-
abled (IRQSER=0) then the INT_PIN register will have the read only value of
01h implying that the SSA7785 ThunderBird Avenger™ device uses INT A
interrupt pin.
PCI CFG 0D7D6D5D4D3D2D1D0
Offset 3Eh
MINGNT[7:0]
POR Value
00001001