Texas Instruments Delfino C28346 DIM168 ControlCARD TMDSCNCD28346-168 TMDSCNCD28346-168 Fiche De Données
Codes de produits
TMDSCNCD28346-168
EMU0
EMU1
TRST
TMS
TDI
TDO
TCK
VDDIO
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
VDDIO
SPRS516D – MARCH 2009 – REVISED AUGUST 2012
6.5
Thermal Design Considerations
Based on the end application design and operational profile, the I
DD
and I
DDIO
currents could vary.
Systems that exceed the recommended maximum power dissipation in the end product may require
additional thermal enhancements. Ambient temperature (T
additional thermal enhancements. Ambient temperature (T
A
) varies with the end application and product
design. The critical factor that affects reliability and functionality is T
J
, the junction temperature, not the
ambient temperature. Hence, care should be taken to keep T
J
within the specified limits. T
case
should be
measured to estimate the operating junction temperature T
J
. T
case
is normally measured at the center of
the package top-side surface. The thermal application reports IC Package Thermal Metrics (literature
number
number
) and Reliability Data for TMS320LF24xx and TMS320F28xx Devices (literature number
) help to understand the thermal metrics and definitions.
6.6
Emulator Connection Without Signal Buffering for the MCU
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.
must be buffered. If the distance is less than 6 inches, buffering is typically not needed.
shows
the simpler, no-buffering situation. For the pullup/pulldown resistor values, see the pin description section.
For details on buffering JTAG signals and multiple processor connections, see TMS320F/C24x DSP
Controllers CPU and Instruction Set Reference Guide (literature number
For details on buffering JTAG signals and multiple processor connections, see TMS320F/C24x DSP
Controllers CPU and Instruction Set Reference Guide (literature number
Figure 6-2. Emulator Connection Without Signal Buffering for the MCU
Copyright © 2009–2012, Texas Instruments Incorporated
Electrical Specifications
113
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