参数资料
型号: S5933QE
厂商: APPLIEDMICRO INC
元件分类: 总线控制器
英文描述: PCI BUS CONTROLLER, PQFP160
封装: PLASTIC, QFP-160
文件页数: 92/176页
文件大小: 823K
代理商: S5933QE
3-30
S5933
PCI CONFIGURATION REGISTERS
Bit
Description
Table 5. PCI Status Register
15
Detected Parity Error. This bit is set whenever a parity error is detected. It functions independently
from the state of Command Register Bit 6. This bit may be cleared by writing a 1 to this location.
14
Signaled System Error. This bit is set whenever the device asserts the signal SERR#. This bit can be
reset by writing a 1 to this location.
13
Received Master Abort. This bit is set whenever a bus master abort occurs. This bit can be reset by
writing a 1 to this location.
12
Received Target Abort. This bit is set whenever this device has one of its own initiated cycles
terminated by the currently addressed target. This bit can be reset by writing a 1 to this location.
11
Signaled Target Abort. This bit is set whenever this device aborts a cycle when addressed as a target.
This bit can be reset by writing a 1 to this location.
10:9
Device Select Timing. These bits are read-only and define the signal behavior of DEVSEL# from this
device when accessed as a target.
8
Data Parity Reported. This bit is set upon the detection of a data parity error for a transfer involving
the S5933 device as the master. The Parity Error Enable bit (D6 of the Command Register) must be
set in order for this bit to be set. Once set, it can only be cleared by either writing a 1 to this location
or by the assertion of the signal RESET#.
7
Fast Back-to-back Capable. When equal to 1, this indicates that the device can accept fast back-to-
back cycles as a target.
6:0
Reserved. Equal all 0’s.
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