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TMS320C80GF Datasheet(PDF) 166 Page - Texas Instruments

Part # TMS320C80GF
Description  DIGITAL SIGNAL PROCESSOR
PDF  171 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS320C80GF Datasheet(HTML) 166 Page - Texas Instruments

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TMS320C80
DIGITAL SIGNAL PROCESSOR
SPRS023B – JULY 1994 – REVISED OCTOBER 1997
163
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251–1443
emulator-interface connection (continued)
For multiprocessor applications, the following conditions are recommended:
D To reduce timing skew, buffer TMS, TDI, TDO, and TCK through the same physical package.
D If buffering is used, 4.7 kΩ resistors are recommended for TMS, TDI, and TCK which should be pulled
high (3.3 V).
D Buffering EMU0 and EMU1 is highly recommended to provide isolation. The buffers need not be in the
same physical package as TMS, TCK, TDI, or TDO. Pullups to 3.3 V are required and should provide
a signal rise time of less than 10
µs. A 4.7 kΩ resistor is suggested for most applications.
D To ensure high quality signals, special printed wire board (PWB) routing and use of termination resistors
may be required. The emulator provides fixed series termination (33
Ω) on TMS and TDI and optional
parallel terminators (180
Ω pullup and 270 Ω pulldown) on TCKRET and TDO.
T34
J35
L33
N33
H34
P32
E35
EMU0
EMU1
TRST
TMS
TDI
TDO
TCK
EMU0
EMU1
TRST
TMS
TDI
TDO
TCK
TCKRET
13
14
2
1
3
7
11
9
PD
GND
GND
GND
GND
GND
5
4
6
8
10
12
’C80
Emulator
Header
3.3 V
3.3 V
3.3 V
EMU0
EMU1
TRST
TMS
TDI
TDO
TCK
’C80
T34
J35
L33
N33
H34
P32
E35
(L26)
(K25)
(J24)
(J26)
(K23)
(K24)
(J25)
GF (GGP) Signal
Pins
(L26)
(K25)
(J24)
(J26)
(K23)
(K24)
(J25)
GF (GGP) Signal
Pins
Figure 138. Emulation Header Connections – Multiprocessor Applications



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