ePWM1
0 0
1
1
From switch on
SOC2A
when PINMMR164[8] = 0
SOC1A
PINMMR164[0]
EPWM1SOCA
From switch on
SOC2A
when PINMMR164[8] = 1
0 0
114
TMS570LS0714
SPNS226E –JUNE 2013–REVISED NOVEMBER 2016
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Peripheral Information and Electrical Specifications Copyright © 2013–2016, Texas Instruments Incorporated
Table 7-22. Control Bit to SOC Output
CONTROL BIT SOC OUTPUT
PINMMR35[0] SOC1A_SEL
PINMMR35[8] SOC2A_SEL
PINMMR35[16] SOC3A_SEL
PINMMR35[24] SOC4A_SEL
PINMMR36[0] SOC5A_SEL
PINMMR36[8] SOC6A_SEL
PINMMR36[16] SOC7A_SEL
The SOCA output from each ePWM module is connected to a "switch" shown in Figure 7-10. This switch
is implemented by using the control registers in the PINMMR module. Figure 7-11 shows an example of
the implementation for the switch on SOC1A. The switches on the other SOCA signals are implemented in
the same way.
Figure 7-11. ePWM1SOC1A Switch Implementation
The logic equations ( Equation 1, Equation 2, Equation 3, and Equation 4) for the four outputs from the
combinational logic shown in Figure 7-10 are:
ePWM_B = SOC1B or SOC2B or SOC3B or SOC4B or SOC5B or SOC6B or SOC7B (1)
ePWM_A1 = [ SOC1A and not(SOC1A_SEL) ] or [ SOC2A and not(SOC2A_SEL) ] or [ SOC3A and not(SOC3A_SEL) ] or
[ SOC4A and not(SOC4A_SEL) ] or [ SOC5A and not(SOC5A_SEL) ] or [ SOC6A and not(SOC6A_SEL) ] or
[ SOC7A and not(SOC7A_SEL) ] (2)
ePWM_A2 = [ SOC1A and SOC1A_SEL ] or [ SOC2A and SOC2A_SEL ] or [ SOC3A and SOC3A_SEL ] or
[ SOC4A and SOC4A_SEL ] or [ SOC5A and SOC5A_SEL ] or [ SOC6A and SOC6A_SEL ] or
[ SOC7A and SOC7A_SEL ] (3)
ePWM_AB = ePWM_B or ePWM_A2 (4)
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