82NM10 Datasheet, PDF (628/671 Pages) Intel Corporation – Intel® NM10 Family Express Chipset

PCI Express* Configuration Registers
19.1.14 SSTS—Secondary Status Register
(PCI Express—D28:F0/F1/F2/F3)
Address Offset: 1Eh–1Fh
Default Value: 0000h
Attribute:
Size:
R/WC
16 bits
Bit
Description
15
14
13
12
11
10:9
8
7
6
5
4:0
Detected Parity Error (DPE) — R/WC.
0 = No error.
1 = The port received a poisoned TLP.
Received System Error (RSE) — R/WC.
0 = No error.
1 = The port received an ERR_FATAL or ERR_NONFATAL message from the device.
Received Master Abort (RMA) — R/WC.
0 = Unsupported Request not received.
1 = The port received a completion with “Unsupported Request” status from the device.
Received Target Abort (RTA) — R/WC.
0 = Completion Abort not received.
1 = The port received a completion with “Completion Abort” status from the device.
Signaled Target Abort (STA) — R/WC.
0 = Completion Abort not sent.
1 = The port generated a completion with “Completion Abort” status to the device.
Secondary DEVSEL# Timing Status (SDTS): Reserved per PCI Express* Base
Specification.
Data Parity Error Detected (DPD) — R/WC.
0 = Conditions below did not occur.
1 = Set when the BCTRL.PERE (D28:FO/F1/F2/F3:3E: bit 0) is set, and either of the
following two conditions occurs:
— Port receives completion marked poisoned.
— Port poisons a write request to the secondary side.
Secondary Fast Back to Back Capable (SFBC): Reserved per PCI Express* Base
Specification.
Reserved
Secondary 66 MHz Capable (SC66). Reserved per PCI Express* Base Specification.
Reserved
19.1.15 MBL—Memory Base and Limit Register
(PCI Express—D28:F0/F1/F2/F3)
Address Offset: 20h–23h
Default Value: 00000000h
Attribute:
Size:
R/W
32 bits
Accesses that are within the ranges specified in this register will be sent to the attached
device if CMD.MSE (D28:F0/F1/F2/F3:04:bit 1) is set. Accesses from the attached
device that are outside the ranges specified will be forwarded to the backbone if
CMD.BME (D28:F0/F1/F2/F3:04:bit 2) is set. The comparison performed is: MB ≥
AD[31:20] ≤ ML.
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Datasheet