IDT PCI Express 89HPES32NT24xG2, User Manual, Page: 401 / 744

IDT PCI-to-PCI Bridge Registers
PES32NT24xG2 User Manual 20 - 17 January 30, 2013
Notes
PCIEDSTS - PCI Express Device Status (0x04A)
11 ENS RO 0x0 Enable No Snoop.
Not applicable. The bridge function does not generate
transactions with the No Snoop bit set and passes transac-
tions through the bridge with the No Snoop bit unmodified.
14:12 MRRS RO 0x0 Maximum Read Request Size.
The bridge function does not generate read requests and
passes transactions through the bridge with the size
unmodified. Therefore, this field has no functional effect on
the behavior of the bridge.
15 Reserved RO 0x0 Reserved field.
Bit
Field
Field
Name
Type Default
Value
Description
0 CED RW1C 0x0 Correctable Error Detected.
This bit indicates the status of correctable errors detected
by this function. Errors are logged in this register regardless
of whether error reporting is enabled or not.
1 NFED RW1C 0x0 Non-Fatal Error Detected.
This bit indicates the status of correctable errors detected
by this function. Errors are logged in this register regardless
of whether error reporting is enabled or not.
2 FED RW1C 0x0 Fatal Error Detected.
This bit indicates the status of fatal errors detected by this
function. Errors are logged in this registers regardless of
whether error reporting is enabled or not.
3 URD RW1C 0x0 Unsupported Request Detected.
This bit indicates the function received an Unsupported
Request. Errors are logged in this register regardless of
whether error reporting is enabled or not.
4 AUXPD RO 0x0 Aux Power Detected.
Devices that require AUX power, set this bit when AUX
power is detected.This device does not require AUX power,
hence the value is hardwired to zero.
5 TP RO 0x0 Transactions Pending.
This function does not issue Non-Posted Requests on its
own behalf. Therefore, this field is hardwired to zero.
15:6 Reserved RO 0x0 Reserved field.
Bit
Field
Field
Name
Type Default
Value
Description