TMS570LS3137 datasheet(36/173 Pages) TI1

36 / 173 page

TMS570LS3137

SPNS162C – APRIL 2012 – REVISED APRIL 2015

www.ti.com

4.3.2.18 Test and Debug Modules Interface

Table 4-40. ZWT Test and Debug Modules Interface

TERMINAL

RESET

SIGNAL

PULL

PULL TYPE

DESCRIPTION

337

TYPE

SIGNAL NAME

STATE

ZWT

Test enable. This terminal

must be connected to ground

TEST

I/O

Fixed 100 µA

directly or via a pulldown

Pulldown

resistor.

nTRST

D18

Input

JTAG test hardware reset

RTCK

A16

Output

N/A

None

JTAG return test clock

Fixed 100 µA

TCK

B18

Input

Pulldown

JTAG test clock

Pulldown

Fixed 100 µA

TDI

A17

I/O

Pullup

JTAG test data in

Pullup

100 µA

TDO

C18

Output

None

JTAG test data out

Pulldown

Fixed 100 µA

TMS

C19

I/O

Pullup

JTAG test select

Pullup

4.3.2.19 Flash Supply and Test Pads

Table 4-41. ZWT Flash Supply and Test Pads

TERMINAL

RESET

SIGNAL

PULL

PULL TYPE

DESCRIPTION

337

TYPE

SIGNAL NAME

STATE

ZWT

3.3-V

VCCP

N/A

None

Flash pump supply

Power

FLTP1

Flash test pads. These

terminals are reserved for TI

use only. For proper operation

–

N/A

None

these terminals must connect

FLTP2

only to a test pad or not be

connected at all [no connect

(NC)].

Terminal Configuration and Functions

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