SAA7785 Datasheet, PDF (56/68 Pages) NXP Semiconductors – ThunderBird Avenger PCI Audio Accelerator

Philips Semiconductors
ThunderBird Avenger^TM PCI Audio
Accelerator
Preliminary Specification
SAA7785
Bit
7:0
Name
MAXLAT
R/W
RO
Function
Maximum latency specifies how often a device needs to gain access to the
PCI bus. The SSA7785 ThunderBird Avenger™, function 1, is a target only,
this register is read only and set to zero.
PCI Configuration Space 2
The following table is a summary of all the PCI configuration space registers. The registers that are block-mates with
the PCI interface (offset 00h - 3Ch) will be detailed following SSA7785 ThunderBird Avenger™. The remainder of the
registers will be detailed with the blocks they control. This register space is for the 16650 UART.
TABLE 51 PCI Configuration Space 2 Register Map
Byte 3
BIST
Max_Lat
Reserved
Reserved
Byte 2
Byte 1
Byte 0
Device ID
Vendor ID
Status
Command
Class Code
Revision ID
Header Type
Master Latency Timer
Cache Line Size
UARTBASE
Reserved
Subsystem ID
Subsystem Vendor ID
Reserved
Min_Gnt
Interrupt Pin
Interrupt Line
Reserved
Reserved
UARTCFG0
Reserved
Reserved
SFCR
Reserved
Offset
00h
04h
08h
0Ch
10-13h
14-2B
2Ch
30-3Bh
3Ch
40h
44h
48-FFh
TABLE 52 Vendor ID Register - VENDOR_ID (RO)
PCI CFG 2
D15
D14
D13
D12
D11
D10
D9
D8
Offset 00h
VENDOR_ID[15:8]
POR Value
0
0
0
1
0
0
0
0
D7
D6
D5
D4
D3
D2
D1
D0
VENDOR_ID[7:0]
POR Value
0
0
0
0
0
1
0
0
Bit
15:0
Name
VENDOR_ID
R/W
Function
RO The PCI Vendor ID for Philips Semiconductors (VLSI) is 1004h.
1999 Nov 12
56