TMS570LS datasheet(23/107 Pages) TI1

23 / 107 page

TMS570LS20206-EP, TMS570LS20216-EP

www.ti.com

SPNS209A – JUNE 2012 – REVISED AUGUST 2012

2.5

Terminal Functions

This following table describes the pins on the device.

NOTE

Table Abbreviations: PWR = power, GND = ground, REF = reference voltage, NC = no

connect, IPD = Internal Pull Down, IPU = Internal Pull Up, I/O = Input/Output, I = Input, O =

Output

Table 2-9. Terminal Functions

Terminal

Internal

TMS570LS20216

TMS570LS20206

Type

pullup/p

Description

Name

ulldown

337

144

337

144

HIGH-END TIMER (NHET)

NHET[0]

K18

105

K18

105

Timer input capture or output compare.

The applicable NHET pins can be

NHET[1]

programmed as general-purpose

NHET[2]

input/output (GIO) pins. NHET pins are

high-resolution.

NHET[3]

The high-resolution (HR) SHARE feature

NHET[4]

B12

121

B12

121

allows even HR pins to share the next

higher odd HR pin structures. The next

NHET[5]

higher odd HR pin structure is always

NHET[6]

implemented, even if the next higher odd

HR pad and/or pin itself is not. The HR

NHET[7]

109

sharing is independent of whether or not

NHET[8]

E18

112

E18

112

the odd pin is available externally. If an

odd pin is available externally and

NHET[9]

shared, then the odd pin can only be

NHET[10]

D19

116

D19

116

used as a general-purpose I/O.

NHET[0] provides SPI clock when used

NHET[11]

117

for SPI emulation.

NHET[12]

Each NHET pin is equipped with an input

suppression filter that can be used to

NHET[13]

eliminate the sampling of pulses that are

NHET[14]

A11

138

A11

138

smaller than a programmable duration

program

NHET[15]

113

GIOA[0]/INT[0] is also connected to the

mable

3.3V I/O

2mA - z

NHET Pin Disable input of the NHET

IPD

NHET[16]

142

module.

(20uA)

NHET[17]

A13

NHET pins can be programmed as a

GIO pins when not used as NHET

NHET[18]

functional pins.

NHET[19]

B13

NHET[20]

NHET[21]

NHET[22]

NHET[23]

NHET[24]

NHET[25]

NHET[26]

A14

NHET[27]

NHET[28]

K19

106

K19

106

NHET[29]

NHET[30]

B11

137

B11

137

NHET[31]

J17

Device Overview

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Product Folder Link(s): TMS570LS20206-EP TMS570LS20216-EP

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