TMS570LS3137 datasheet(119/159 Pages) TI

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TMS570LS3137

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SPNS162.

– SEPTEMBER 2011

NOTE

For AD2EVT, N2HET1 and GIOB trigger sources, the connection to the MibADC2 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 (via the mux

control), or by driving the function from an external trigger source as input. If the mux control

module is used to select different functionality instead of the AD2EVT, N2HET1[x] or GIOB[x]

signals, then care must be taken to disable these signals from triggering conversions; there

is no multiplexing on the 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.

5.2.2.4

Alternate MIBADC2 Event Trigger Hookup

Table 5-6. Alternate MIBADC2 Event Trigger Hookup

Event #

Source Select Bits for G1, G2 or Event

Trigger

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

000

AD2EVT

001

N2HET2[5]

010

N2HET1[27]

011

RTI compare 0

100

N2HET1[17]

101

N2HET1[19]

110

N2HET1[11]

111

N2HET2[13]

The selection between the default MIBADC2 event trigger hook-up versus the alternate event trigger

hook-up is done by multiplexing control module register 30 bits 0 and 1.

If 30[0] = 1, then the default MibADC2 event trigger hook-up is used.

If 30[0] = 0 and 30[1] = 1, then the alternate MibADC2 event trigger hook-up is used.

NOTE

For AD2EVT trigger source, the connection to the MibADC2 module trigger input is made

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

by configuring AD2EVT as an output function on to the pad (via the mux control), or by

driving the AD2EVT signal from an external trigger source as input. If the mux control module

is used to select different functionality instead of the AD2EVT signal, then care must be

taken to disable AD2EVT from triggering conversions; there is no multiplexing on the input

connections.

NOTE

For N2HETx trigger sources, the connection to the MibADC2 module trigger input is made

from the input side of the output buffer (at the N2HETx module boundary). This way, a

trigger condition can be generated even if the N2HETx signal is not selected to be output on

the pad.

Peripheral Information and Electrical Specifications

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