RM46L852_15 Datasheet, PDF (112/188 Pages) Texas Instruments – 16- and 32-Bit RISC Flash Microcontroller

RM46L852
SPNS185C – SEPTEMBER 2012 – REVISED JUNE 2015
www.ti.com
6.18 Error Signaling Module
The Error Signaling Module (ESM) manages the various error conditions on the TMS570 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.
6.18.1 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
6.18.2 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 6-36 shows the channel assignment for each group.
ERROR GROUP
Group1
Group2
Group3
Table 6-35. ESM Groups
INTERRUPT CHARACTERISTICS
maskable, low or high priority
non-maskable, high priority
no interrupt generated
INFLUENCE ON ERROR PIN
configurable
fixed
fixed
Table 6-36. ESM Channel Assignments
ERROR Condition
Reserved
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
HTU1/HTU2 - dual-control packet RAM parity error
HTU1/HTU2 - MPU configuration violation
PLL1 - Slip
Clock Monitor - oscillator fail
Reserved
DMA - error on DMA write access, imprecise error
Reserved
VIM RAM - parity error
Reserved
MibSPI1 - RAM parity error
MibSPI3 - RAM parity error
Group
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Group1
Channels
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
112 System Information and Electrical Specifications
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