Control of Special Multiplexed Options
315
SPNU563A – March 2018
Copyright © 2018, Texas Instruments Incorporated
I/O Multiplexing and Control Module (IOMM)
Table 6-5. ADC2 Trigger Event Selection
Group Source
Select, G1SRC,
G2SRC or EVSRC
Event #
PINMMR161[0]
PINMMR161[1]
Control Option A
Control Option B
Trigger Source
000
1
x
x
NA
NA
AD2EVT
001
2
1
0
PINMMR162[16] = x
PINMMR162[17] = x
N2HET1[8]
0
1
PINMMR162[16] = 1
PINMMR162[17] = 0
N2HET2[5]
0
1
PINMMR162[16] = 0
PINMMR162[17] = 1
ePWM_B
010
3
1
0
NA
NA
N2HET1[10]
0
1
NA
NA
N2HET1[27]
011
4
1
0
PINMMR162[24] = x
PINMMR162[25] = x
RTI1 Comp0
0
1
PINMMR162[24] = 1
PINMMR162[25] = 0
RTI1 Comp0
0
1
PINMMR162[24] = 0
PINMMR162[25] = 1
ePWM_A1
100
5
1
0
NA
NA
N2HET1[12]
0
1
NA
NA
N2HET1[17]
101
6
1
0
PINMMR163[0] = x
PINMMR163[1] = x
N2HET1[14]
0
1
PINMMR163[0] = 1
PINMMR163[1] = 0
N2HET1[19]
0
1
PINMMR163[0] = 0
PINMMR163[1] = 1
N2HET2[1]
110
7
1
0
PINMMR163[8] = x
PINMMR163[9] = x
GIOB[0]
0
1
PINMMR163[8] = 1
PINMMR163[9] = 0
N2HET1[11]
0
1
PINMMR163[8] = 0
PINMMR163[9] = 1
ePWM_A2
111
8
1
0
PINMMR163[16] = x
PINMMR163[17] = x
GIOB[1]
0
1
PINMMR163[16] = 1
PINMMR163[17] = 0
N2HET2[13]
0
1
PINMMR163[16] = 0
PINMMR163[17] = 1
ePWM_AB
6.5.5 Control for ADC Event Trigger Signal Generation from ePWMx Modules
This microcontroller implements 7 ePWM modules, see
. Each of these modules generate two
outputs, SOCA (Start Of Conversion) and SOCB, for use in triggering the on-chip ADC modules. Registers
from the I/O multiplexing module are used to control the logic for generation of the ePWM_A1, ePWM_A2,
ePWM_AB, and ePWM_B signals from these ePWMx_SOCA and ePWMx_SOCB signals.
