Datasheet

TRST
TMS
TDI
TDO
TCK
V
DDIO
MCU
EMU0
EMU1
TRST
TMS
TDI
TDO
TCK
TCK_RET
13
14
2
1
3
7
11
9
6 inches or less
PD
GND
GND
GND
GND
GND
5
4
6
8
10
12
JTAG Header
V
DDIO
TMS320F28069, TMS320F28068, TMS320F28067, TMS320F28066
TMS320F28065, TMS320F28064, TMS320F28063, TMS320F28062
www.ti.com SPRS698D –NOVEMBER 2010–REVISED DECEMBER 2012
5.7 Emulator Connection Without Signal Buffering for the MCU
Figure 5-9 shows the connection between the MCU and JTAG header for a single-processor configuration.
If the distance between the JTAG header and the MCU is greater than 6 inches, the emulation signals
must be buffered. If the distance is less than 6 inches, buffering is typically not needed. Figure 5-9 shows
the simpler, no-buffering situation. For the pullup and pulldown resistor values, see Section 2.4, Signal
Descriptions.
A. See Figure 5-48 for JTAG/GPIO multiplexing.
Figure 5-9. Emulator Connection Without Signal Buffering for the MCU
NOTE
The 2806x devices do not have EMU0/EMU1 pins. For designs that have a JTAG Header
on-board, the EMU0/EMU1 pins on the header must be tied to V
DDIO
through a 4.7-kΩ
(typical) resistor.
Copyright © 2010–2012, Texas Instruments Incorporated Peripheral and Electrical Specifications 73
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Product Folder Links: TMS320F28069 TMS320F28068 TMS320F28067 TMS320F28066 TMS320F28065
TMS320F28064 TMS320F28063 TMS320F28062