CS4630-CM Ver la hoja de datos (PDF) - Cirrus Logic
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CS4630-CM Datasheet PDF : 38 Pages
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CS4630
4.2 Configuration Space
The content and format of the PCI Configuration Space is given in Table 2.
Byte 3
Byte 2
Byte 1
Byte 0
Device ID: R/O, 6003h
Status Register, bits 15-0:
Bit 15 Detected Parity Error: Error Bit
Bit 14 Signalled SERR: Error Bit
Bit 13 Received Master Abort: Error Bit
Bit 12 Received Target Abort: Error Bit
Bit 11 Signalled Target Abort: Error Bit
Bit 10-9 DEVSEL Timing: R/O, 10b (slow)
Bit 8 Data Parity Error Detected: Error Bit
Bit 7 Fast Back to Back Capable: R/O 0
Bit 6 User Definable Features: R/O 0
Bit 5 66MHz Bus: R/O 0
Bit 4 New Capabilities: R/O 1
Bit 3-0Reserved: R/O 0000
Reset Status State: 0410h
Write of 1 to any error bit position clears it.
Vendor ID: R/O, 1013h
Command Register, bits 15-0:
Bit 15-10: Reserved, R/O 0
Bit 9 Fast B2B Enable: R/O 0
Bit 8 SERR Enable: R/W, default 0
Bit 7 Wait Control: R/O 0
Bit 6 Parity Error Response: R/W, default 0
Bit 5 VGA Palette Snoop: R/O 0
Bit 4 MWI Enable: R/O 0
Bit 3 Special Cycles: R/O 0
Bit 2 Bus Master Enable: R/W, default 0
Bit 1 Memory Space Enable: R/W, default 0
Bit 0 IO Space Enable: R/O 0
Class Code: R/O 040100h
Class 04h (multimedia device), Sub-class 01h (audio), Interface 00h
BIST: R/O 0
Header Type:
Bit 7: R/O 0
Bit 6-0: R/O 0 (type 0)
Latency Timer:
Bit 7-3: R/W,default 0
Bit 2-0: R/O 0
Base Address Register 0
Device Control Register space, memory mapped. 4 kByte size
Bit 31-12: R/W, default 0. Compare address for register space accesses
Bit 11 - 4: R/O 0, specifies 4 kByte size
Bit 3: R/O 0, Not Prefetchable (Cacheable)
Bit 2-1: R/O 00, Location Type - Anywhere in 32 bit address space
Bit 0: R/O 0, Memory space indicator
Base Address Register 1
Device Memory Array mapped into host system memory space, 1 MByte size
Bit 31-20: R/W, default 0. Compare address for memory array accesses
Bit 19 - 4: R/O 0, specifies 1 MByte size
Bit 3: R/O 0, Not Prefetchable (Cacheable)
Bit 2-1: R/O 00, Location Type - Anywhere in 32 bit address space
Bit 0: R/O 0, Memory space indicator
Base Address Register 2: R/O 00000000h, Unused
Base Address Register 3: R/O 00000000h, Unused
Base Address Register 4: R/O 00000000h, Unused
Base Address Register 5: R/O 00000000h, Unused
Cardbus CIS Pointer: R/O 00000000h, Unused
Revision ID: R/O 01h
Cache Line Size:
R/O 0
Offset
00h
04h
08h
0Ch
10h
14h
18h
1Ch
20h
24h
28h
Table 2. PCI Configuration Space
DS445PP1
17
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