ADV
ANCEINFORMA
TION
CTRIPOUT1H
CTRIP1H
CTRIP1L
CTRIP2L
CTRIPOUT2H
CTRIP2H
CTRIPOUT8H
CTRIP8H
CTRIP8L
PWMs
ePWM X-BAR
GPTRIP
CAPOUT Trip
CMPSS Trip
CTRIPOUT2L
CTRIPOUT8L
CTRIP1H
CTRIP1L
CTRIP2H
CTRIP2L
CTRIP8H
CTRIP8L
GPIO
Mux
Output X-Bar
GPTRIP
CAPOUT Trip
CMPSS Trip
CTRIPOUT1H
CTRIPOUT1L
CTRIPOUT2H
CTRIPOUT2L
CTRIPOUT8H
CTRIPOUT8L
Comparator Subsystem 1
VDDA or VDAC
Digital
Filter
Digital
Filter
DAC12
DAC12
CTRIPOUT1L
Comparator Subsystem 2
VDDA or VDAC
Digital
Filter
Digital
Filter
DAC12
DAC12
Comparator Subsystem 8
VDDA or VDAC
Digital
Filter
Digital
Filter
DAC12
DAC12
CMPIN1P Pin
CMPIN1N Pin
CMPIN2N Pin
CMPIN8N Pin
CMPIN2P Pin
CMPIN8P Pin
TMS320F28377S, TMS320F28376S, TMS320F28375S, TMS320F28374S
SPRS881A – AUGUST 2014 – REVISED JUNE 2015
5.8.2
Comparator Subsystem (CMPSS)
Each CMPSS module includes two comparators, two internal voltage reference DACs, two digital glitch
filters, and one ramp generator. There are two inputs, CMPINxP and CMPINxN. Each of these will be
internally connected to an ADCIN pin. The CMPINxP pin is always connected to the positive input of the
CMPSS comparators. CMPINxN can be used instead of the DAC output to drive the negative comparator
inputs. There are two comparators, and therefore two outputs from the CMPSS module, which are
connected to the input of a digital filter module before being passed on to the Comparator TRIP crossbar
and either PWM modules or directly to a GPIO pin.
shows the CMPSS connectivity on the
337-ball ZWT and 176-pin PTP packages.
shows CMPSS connectivity on the 100-pin PZP
package.
Figure 5-34. CMPSS Connectivity (337-Ball ZWT and 176-Pin PTP)
106
Specifications
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