TMS570LS0332PZ datasheet(16/110 Pages) TI1

16 / 110 page

TMS570LS0432, TMS570LS0332

SPNS186B – OCTOBER 2012 – REVISED JUNE 2015

www.ti.com

4.3

Output Multiplexing and Control

Output multiplexing will be used in the device. The multiplexing is used to allow development of additional

package and feature combinations as well as to maintain pinout compatibility with the marketing device

family.

In all cases indicated as multiplexed, the output buffers are multiplexed.

4.3.1

Notes on Output Multiplexing

Table 4-17 shows the output signal multiplexing and control signals for selecting the desired functionality

for each pin.

•

The pins default to the signal defined by the DEFAULT FUNCTION column in Table 4-17

•

The CONTROL 1, CONTROL 2, and CONTROL 3 columns indicate the multiplexing control register and the bit

that must be set in order to select the corresponding functionality to be output on any particular pin.

For example, consider the multiplexing on pin 18, shown in Table 4-18 .

Table 4-17. Output Mux Options

DEFAULT

100 PZ PIN

CONTROL 1

OPTION2

CONTROL 2

OPTION 3

CONTROL 3

FUNCTION

GIOA[0]

PINMMR0[8]

SPI3nCS[3]

PINMMR0[9]

–

GIOA[1]

PINMMR1[0]

SPI3nCS[2]

PINMMR1[1]

–

GIOA[2]

PINMMR1[8]

SPI3nCS[1]

PINMMR1[9]

–

GIOA[3]

PINMMR1[16]

SPI2nCS[3]

PINMMR1[17]

–

GIOA[4]

PINMMR1[24]

SPI2nCS[2]

PINMMR1[25]

–

GIOA[5]

PINMMR2[0]

EXTCLKIN

PINMMR2[1]

–

GIOA[6]

PINMMR2[8]

SPI2nCS[1]

PINMMR2[9]

N2HET[31]

PINMMR2[10]

GIOA[7]

PINMMR2[16]

N2HET[29]

PINMMR2[17]

–

MIBSPI1nCS[1]

PINMMR6[8]

EQEPS

PINMMR6[9]

N2HET[17]

PINMMR6[10]

MIBSPI1nCS[2]

PINMMR3[0]

N2HET[20]

PINMMR3[1]

N2HET[19]

PINMMR3[2]

MIBSPI1nCS[3]

PINMMR4[8]

N2HET[26]

PINMMR4[9]

–

MIBSPI1nENA

PINMMR5[8]

N2HET[23]

PINMMR5[9]

N2HET[30]

PINMMR5[10]

SPI3CLK

PINMMR3[16]

EQEPA

PINMMR3[17]

–

SPI3nCS[0]

PINMMR4[0]

EQEPI

PINMMR4[1]

–

SPI3nENA

PINMMR3[24]

EQEPB

PINMMR3[25]

–

ADEVT

PINMMR4[16]

N2HET[28]

PINMMR4[17]

–

Table 4-18. Muxing Example

100 PZ PIN

DEFAULT

CONTROL 1

OPTION2

CONTROL 2

OPTION 3

CONTROL 3

FUNCTION

GIOA[7]

PINMMR2[16]

N2HET[29]

PINMMR2[17]

–

•

When GIOA[7] is configured as an output pin in the GPIO module control register, then the programmed output

level appears on pin 18 by default. The PINMMR2[16] bit is set by default to indicate that the GIOA[7] signal is

selected to be output.

•

If the application must output the N2HET[29] signal on pin 18, it must clear PINMMR2[16] and set PINMMR2[17].

•

The pin is connected as input to both the GPIO and N2HET modules. That is, there is no input multiplexing on this

pin.

Terminal Configuration and Functions

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