Datasheet

127
RM57L843
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SPNS215C FEBRUARY 2014REVISED JUNE 2016
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System Information and Electrical SpecificationsCopyright © 2014–2016, Texas Instruments Incorporated
6.19 Error Signaling Module
The Error Signaling Module (ESM) manages the various error conditions on the TMS570LCx
microcontroller. The error condition is handled based on a fixed severity level assigned to it. Any severe
error condition can be configured to drive a low level on a dedicated device terminal called nERROR. The
nERROR can be used as an indicator to an external monitor circuit to put the system into a safe state.
6.19.1 ESM Features
The features of the ESM are:
160 interrupt/error channels are supported, divided into three groups
96 channels with maskable interrupt and configurable error terminal behavior
32 error channels with nonmaskable interrupt and predefined error terminal behavior
32 channels with predefined error terminal behavior only
Error terminal to signal severe device failure
Configurable time base for error signal
Error forcing capability
6.19.2 ESM Channel Assignments
The ESM integrates all the device error conditions and groups them in the order of severity. Group1 is
used for errors of the lowest severity while Group3 is used for errors of the highest severity. The device
response to each error is determined by the severity group to which the error is connected. Table 6-45
lists the channel assignment for each group.
Table 6-44. ESM Groups
ERROR GROUP INTERRUPT CHARACTERISTICS
INFLUENCE ON
ERROR
TERMINAL
Group1 Maskable, low or high priority Configurable
Group2 Nonmaskable, high priority Fixed
Group3 No interrupt generated Fixed
Table 6-45. ESM Channel Assignments
ESM ERROR SOURCES GROUP CHANNELS
Group1
Reserved Group1 0
MibADC2 - parity Group1 1
DMA - MPU error for CPU (DMAOCP_MPVINT(0)) Group1 2
DMA - ECC uncorrectable error Group1 3
EPC - Correctable Error Group1 4
Reserved Group1 5
L2FMC - correctable error (implicit OTP read). Group1 6
NHET1 - parity Group1 7
HET TU1/HET TU2 - parity Group1 8
HET TU1/HET TU2 - MPU Group1 9
PLL1 - slip Group1 10
LPO Clock Monitor - interrupt Group1 11
Reserved Group1 12
Reserved Group1 13
Reserved Group1 14