Datasheet

GIOA[0]
I2C2 receive
EPWM1_SOCA
MIBSPI2[2]
MIBSPI4[2]
DMAREQ[32]
DMA
PINMMR175[0]
0
1
DMAREQ[47]
124
RM57L843
SPNS215C –FEBRUARY 2014–REVISED JUNE 2016 www.ti.com
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System Information and Electrical Specifications Copyright © 2014–2016, Texas Instruments Incorporated
6.17.4 Using a GIO terminal as a DMA Request Input
Each GIO terminal can also directly be used as DMA request input as listed in Table 6-41. The polarity of
the GIO terminal to trigger a DMA request can be selected inside the DMA module. To use the GIO
terminal as a DMA request input, the corresponding select bit must be set to low. See Figure 6-19 for an
illustration. For more information see the technical reference guide SPNU562.
Figure 6-19. Using a GIO terminal as a DMA Request Input
Table 6-42. GIO DMA Request Disable Mapping
GIO TERMINAL GIO DMA REQUEST SELECT BIT
GIOA[0] PINMMR175[0]
GIOA[1] PINMMR175[8]
GIOA[2] PINMMR175[16]
GIOA[3] PINMMR175[24]
GIOA[4] PINMMR176[0]
GIOA[5] PINMMR176[8]
GIOA[6] PINMMR176[16]
GIOA[7] PINMMR176[24]
GIOB[0] PINMMR177[0]
GIOB[1] PINMMR177[8]
GIOB[2] PINMMR177[16]
GIOB[3] PINMMR177[24]
GIOB[4] PINMMR178[0]
GIOB[5] PINMMR178[8]
GIOB[6] PINMMR178[16]
GIOB[7] PINMMR178[24]