S5920Q Applied Micro Circuits Corporation, S5920Q Datasheet - Page 46

• 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 STATUS REGISTER (PCISTS)
Figure 10. PCI Status Register
AMCC Confidential and Proprietary
Register Name:
Address Offset:
Power-up value:
Boot-load:
Attribute:
Size:
15 14 13
X
X
0
PCI Status
06h-07h
0200h
not used
Read Only Read/Write Clear
16 bits
12 11
0
0
10
0
9
1
8
0
7
1
6
0
54
0
This register contains PCI device status information.
This register is defined by the PCI specification and its
implementation is required of all PCI devices. Only
applicable bits are used by the S5920; those which are
not used are hardwired to 0. Status bits within this reg-
ister are designated as “write one clear,” meaning that
in order to clear a given bit, a 1 must be written. All R/
W/C bits written with a 0 are left unchanged. These
bits are identified in Figure 4 as (R/WC). Those which
are Read Only are shown as (RO).
Reserved = 00's
Reserved (RO)
66 Mhz Capable
UDF Supported
Fast Back-to-Back Capable
(RO)
Data Parity Reported (RO)
DEVSEL# Timing Status
00 = Fast
01 = Medium
10 = Slow
11 = Reserved
Signaled Target Abort (R/WC)
Received Target Abort (RO)
Received Master Abort (RO)
Signaled System Error (R/WC)
Detected Parity Error (R/WC)
Revision 1.02 – April 12, 2007
Data Book
0
DS1596
46