TMS570LS31 datasheet(13/37 Pages) TI

13 / 37 page

TMS570LS31 HDK User Guide

Texas Instruments Proprietary Information – Internal Data

ETMDATA[13]

45 46

ETMDATA[14]

47 48

ETMDATA[15]

49 50

ETMDATA[16]

51 52

ETMDATA[17]

53 54

ETMDATA[18]

55 56

GND

57 58

GND

59 60

2.2.5 J7, XDS100V2 USB JTAG Interface

The USB connector J7 is used to connect to the host development system which

is running the software development IDE (CCS). The signals on this connector

are shown in the table below.

Table 7, J7, XDS100V2 USB JTAG Interface

Pin #

Signal Name

USBVDD

D-

D+

USBVSS

Before the board is shipped, the FTDI port1 is configured as JTAG, and port2 is

configured as SCI. The CPLD is also programmed to route FTDI JTAG to MCU

JTAG.

The HDK features circuitry to detect the external JTAG emulator. If a device is

plugged onto the header J4 and J19, the DS1 LED will be turned on, and

XDS100V2 JTAG is disabled.

2.2.6 P1, +12V Input

Connector P1 is the input power connector. This connector brings in +12 volts to

the HDK Board. This is a 2.5 mm. jack. The figure below shows this connector as

viewed from the card edge.

Figure 5, +12 Volt Input Jack

TMS570LS31 Datasheet(PDF) 13 Page - Texas Instruments