L3 interconnect flags
BURST_TIMEOUT
REQ_TIMEOUT
SERROR
RESP_TIMEOUT
Initiator agent
Target agent
ERROR_LOG
SResp=ERR
Initiator module
TA ERROR_LOG
PM ERROR_LOG
From TA:
Protection violation,
TA request time-out,
target core error
Sidebandinterconnect
FLAG_ST
A
TUS_0
FLAG_ST
A
TUS_1
PMCODE
InBandtoOutBand
MPU SS
DSP SS
INTC
EMU
INTC
EMU
System
control
module
Target module
intc-011
Public Version
L3 Interconnect
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Figure 9-8. Global Error Routing
In addition to the SResp qualifier error reporting, some external targets use an SError signal to indicate
that an internal error has occurred. Some resetting action may be required before any new request can be
accepted, depending on the module and on the error itself. These signals are routed as flags internally to
the L3.
lists the possible errors reported through an SError, propagated externally to the L3
interconnect, and aggregated to the L3 application error flag.
Table 9-28. L3 External Input Flags
Target
Flag
Description
Software Visible?
GPMC
SError
General-purpose error occurs in GPMC
Yes, in FLAG_STATUS register and in L3 TA
module
SERROR bit AGENT_STATUS[24]
SGX master
MError
General-purpose error occurs in SGX
Yes, in FLAG_STATUS register and in L3 IA
master
MERROR bit AGENT_STATUS[24]
SGX target
SError
General-purpose error occurs in SGX
Yes, in FLAG_STATUS register and in L3 TA
target
SERROR bit AGENT_STATUS[24]
2018
Interconnect
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated