Broadcom NetXtreme/NetLink BCM5718 Series

PCI Configuration RegistersBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 291
DEVICE_STATUS_CONTROL – 0xb4
Name Bits Access
Default
Value
Description
Unused1 31:22 RO 0 –
NP_TRANSACTION_PEND 21 RO 0 This is bit is read back a 1, whenever a non-
posted request initiated by PCIE core is pending
to be completed. Path= i_tl_top
AUX_PWR_DET 20 RO 0x1 This bit is the current state of the VAUX_PRSNT
pin of the device. When it is '1', it is indicating that
part needs VAUX and detects the VAUX is
present. Path= input to pcie_vaux_pipe
UNSUP_REQ_DET 19 WC 0 UnSupported Request Detected.
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.
FATAL_ERR_DET 18 WC 0 Fatal Error Detected.
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.
NON_FATAL_ERR_DET 17 WC 0 Non-Fatal Error Detected.
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.
CORR_ERR_DET 16 WC 0 Correctable Error Detected.
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.
FLR_INITIATED 15 RW 0 Initiate Function Level reset. This bit is writeable
only if flr_supported bit in private
device_capability register is set. A write of 1 to this
bit initiates Function Level Reset. The value read
by s/w from this bit is always 0.
MAX_READ_REQ_SIZ 14:12 RW 0 Maximum Read Request Size. Depending on the
spec, internal logic uses either the min or the max
of the value of the two functions.
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.
NO_SNOOP_ENABLE 11 RW 0x1 Enable No Snoop. When this bit is set to 1, PCIE
initiates a read request with the No Snoop bit in
the attribute field set for the transactions that
request the No Snoop attribute.
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.
AUX_PWR_PM_ENA 10 RW 0x1 This bit when set enables device to draw aux
power independent of PME AUX power
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.
Unused0 9 RO 0 –
EXTENDED_TAG_EN 8 RO 0 Extended Tag Field Enable. This capability is not
supported.
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.
MAX_PAYLOAD_SIZE 7:5 RW 0 Max Payload Size. Depending on the spec,
internal logic uses either the min or the max of the
value of the two functions.
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.
RELAX_ORDERING_ENABL
E
4 RW 0x1 Relax Ordering Enable.
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.
U_REQ_REPORT_EN 3 RW 0:pr Unsupported Request Reporting Enable.
Path= i_cfg_func.i_cfg_public.i_cfg_exp_cap.