Texas Instruments TMS570LC4357 Technical Reference Manual page 311

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NOTE: Inputs are broadcast to all multiplexed functions
The input signals are broadcast to all modules hooked up to a terminal. The application must
ensure that modules that are not being used in the application do not react to a change on
their input functions. For example, a GIO signal toggle can trigger an interrupt request, when
the application actually is using the function multiplexed with this GIO signal.
N2HET1[17]/EMIF_nOE/SCI4RX
MIBSPI1NCS[1]/MII_COL/N2HET1[17]/eQEP1S
SPNU563A – March 2018
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Figure 6-3. Input Multiplexing Example
Copyright © 2018, Texas Instruments Incorporated
Control of Multiplexed Inputs
Not (PINMMR92[0]=0 and PINMMR92[1]=1)
1
N2HET1[17]_IN
0
I/O Multiplexing and Control Module (IOMM)
SCI4
EMIF
N2HET1
MIBSPI1
Ethernet
eQEP1
311