TMS570LS0232PZ datasheet(70/109 Pages) TI1

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TMS570LS0232

SPNS242A – OCTOBER 2014 – REVISED JUNE 2015

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7.2.2

Event Trigger Options

The ADC module supports three conversion groups: Event Group, Group1, and Group2. Each of these

three groups can be configured to be hardware event-triggered. In that case, the application can select

from among eight event sources to be the trigger for the conversions of a group.

7.2.2.1

MIBADC Event Trigger Hookup

Table 7-3. MIBADC Event Trigger Hookup

SOURCE SELECT BITS

EVENT NUMBER

For G1, G2, or EVENT

TRIGGER

(G1SRC[2:0], G2SRC[2:0], or EVSRC[2:0])

000

ADEVT

001

N2HET[8]

010

N2HET[10]

011

RTI compare 0 interrupt

100

N2HET[12]

101

N2HET[14]

110

N2HET[17]

111

N2HET[19]

NOTE

For ADEVT, N2HET trigger sources, the connection to the MibADC module trigger input is

made from the output side of the input buffer. This way, a trigger condition can be generated

either by configuring the function as output onto the pad, or by driving the function from an

external trigger source as input. If the mux controller module is used to select different

functionality instead of ADEVT or N2HET[x], care must be taken to disable these signals

from triggering conversions; there is no multiplexing on input connections.

NOTE

For the RTI compare 0 interrupt source, the connection is made directly from the output of

the RTI module. That is, the interrupt condition can be used as a trigger source even if the

actual interrupt is not signaled to the CPU.

Peripheral Information and Electrical Specifications

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