Texas Instruments TMS320C6000 Reference Manual page 8

Designing Your Target System's Emulator Connector (14-Pin Header)
Table 1. 14-Pin Header Signal Descriptions
Signal Description
TMS Test mode select
TDI Test data input
TDO Test data output
TCK Test clock. TCK is a 10.368-MHz clock source from the emulation cable
pod. This signal can be used to drive the system test clock
‡
TRST Test reset
EMU0 Emulation pin 0
EMU1 Emulation pin 1
PD(V ) Presence detect. Indicates that the emulation cable is connected and
CC
that the target is powered up. PD should be tied to V
tem.
TCK_RET Test clock return. Test clock input to the emulator. May be a buffered or
unbuffered version of TCK.
GND Ground
† I = input; O = output
‡ Do not use pullup resistors on TRST: it has an internal pulldown device. In a low-noise environment, TRST can be left floating.
In a high-noise environment, an additional pulldown resistor may be needed. (The size of this resistor should be based on
electrical current considerations.)
Although you can use other headers, recommended parts include:
straight header, unshrouded
4 Designing for JTAG Emulation
Emulator
State
O
O
I
O
O
I
I
I
in the target sys-
CC
I
DuPont Connector Systems
part numbers: 65610−114
65611−114
67996−114
67997−114
† †
Target
State
I
I
O
I
I
I/O
I/O
O
O
SPRU641