Datasheet

RM46L852
www.ti.com SPNS185C –SEPTEMBER 2012–REVISED JUNE 2015
NOTE
If ADEVT, N2HET1 or GIOB is used as a trigger source, the connection to the MibADC1
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 (through
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 ADEVT, 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.
If ePWM_B, ePWM_S2, ePWM_AB, N2HET2[1], N2HET2[5], N2HET2[13],
N2HET1[11], N2HET1[17] or N2HET1[19] is used to trigger the ADC the connection
to the ADC is made directly from the N2HET or ePWM module outputs. As a result,
the ADC can be triggered without having to enable the signal from being output on
a device terminal.
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.
7.4.2.2 MIBADC2 Event Trigger Hookup
Table 7-17. MIBADC2 Event Trigger Hookup
Trigger Event Signal
Group Source
Select, G1SRC, PINMMR30[0] = 0 and PINMMR30[1] = 1
Event #
PINMMR30[0] = 1
G2SRC or
Control for Control for
(default)
Option A Option B
EVSRC
Option A Option B
000 1 AD2EVT AD2EVT — AD2EVT —
PINMMR31[16] =
PINMMR31[16] = 0 and
001 2 N2HET1[8] N2HET2[5] ePWM_B
1 PINMMR31[17] =
1
010 3 N2HET1[10] N2HET1[27] — N2HET1[27] —
PINMMR31[24] =
RTI Compare 0 RTI Compare 0 PINMMR31[24] = 0 and
011 4 ePWM_A1
Interrupt Interrupt 1 PINMMR31[25] =
1
100 5 N2HET1[12] N2HET1[17] — N2HET1[17] —
PINMMR32[0] = 0
101 6 N2HET1[14] N2HET1[19] PINMMR32[0] = 1 N2HET2[1] and
PINMMR32[1] = 1
PINMMR32[8] = 0
110 7 GIOB[0] N2HET1[11] PINMMR32[8] = 1 ePWM_A2 and
PINMMR32[9] = 1
PINMMR32[16] =
PINMMR32[16] = 0 and
111 8 GIOB[1] N2HET2[13] ePWM_AB
1 PINMMR32[17] =
1
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