S5920Q Applied Micro Circuits Corporation, S5920Q Datasheet - Page 44

• Manufacturer Part Number: S5920Q
• Manufacturer: Applied Micro Circuits Corporation

Specifications of S5920Q

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Package Type: PQFP
• Rad Hardened: No
• Lead Free Status / Rohs Status: Not Compliant

S5920 – PCI Product: PCI Configuration Registers
PCI COMMAND REGISTER (PCICMD)
Figure 9. PCI Command Register
AMCC Confidential and Proprietary
Register Name:
Address Offset:
Power-up value:
Boot-load:
Attribute:
Size:
15
Fast Back-to-Back
SERR# Enable
Wait Cycle Enable
PERR# Enable
Palette Snoop Enable
Memory Write and Invalidate Enable
Special Cycle Enable
Bus Master Enable
Memory Access Enable
I/O Access Enable
PCI Command
04h-05h
0000h
not used
Read/Write (R/W on 4 bits, R/O for
all others)
16 bits
Reserved = 00
9
0
X
8
This 16-bit register provides basic control over a
device’s ability to respond to or perform PCI accesses.
This register is defined by the PCI specification and its
implementation is required of all PCI devices. Four of
the ten implemented bits are required by the S5920;
those which are not required are hardwired to 0. The
definitions for all the fields are provided here for
completeness.
7
0
X
6
5
0
4
0
Revision 1.02 – April 12, 2007
3
0
2
0
Data Book
X
1
X
0
DS1596
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