RM46L450
RM46L850
SPNS184 –SEPTEMBER 2012
www.ti.com
4.18 Error Signaling Module
The Error Signaling Module (ESM) manages the various error conditions on the RM4x 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. This can be used as an
indicator to an external monitor circuit to put the system into a safe state.
4.18.1 Features
The features of the Error Signaling Module are:
•
128 interrupt/error channels are supported, divided into 3 different groups
–
–
–
64 channels with maskable interrupt and configurable error pin behavior
32 error channels with non-maskable interrupt and predefined error pin behavior
32 channels with predefined error pin behavior only
•
•
•
Error pin to signal severe device failure
Configurable timebase for error signal
Error forcing capability
4.18.2 ESM Channel Assignments
The Error Signaling Module (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 it is connected to.
Table 4-36 shows the channel assignment for each group.
Table 4-35. ESM Groups
ERROR GROUP
Group1
INTERRUPT CHARACTERISTICS
maskable, low or high priority
non-maskable, high priority
no interrupt generated
INFLUENCE ON ERROR PIN
configurable
fixed
Group2
Group3
fixed
Table 4-36. ESM Channel Assignments
ERROR Condition
Group
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Channels
Reserved
0
1
2
3
4
5
6
MibADC2 - RAM parity error
DMA - MPU configuration violation
DMA - control packet RAM parity error
Reserved
DMA - error on DMA read access, imprecise error
FMC - correctable ECC error: bus1 and bus2 interfaces
(does not include accesses to Bank 7)
N2HET1 - RAM parity error
HET TU1/HET TU2 - dual-control packet RAM parity error
HET TU1/HET TU2 - MPU configuration violation
PLL1 - Slip
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
7
8
9
10
11
12
13
14
15
16
17
Clock Monitor - oscillator fail
Reserved
DMA - error on DMA write access, imprecise error
Reserved
VIM RAM - parity error
Reserved
MibSPI1 - RAM parity error
104
System Information and Electrical Specifications
Copyright © 2012, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: RM46L450 RM46L850
TI [ TEXAS INSTRUMENTS ]
