SC2200 Datasheet, PDF (77/433 Pages) National Semiconductor (TI) – Thin Client On a Chip

Signal Definitions (Continued)
2.4.18 JTAG Interface Signals
Ball No.
Signal Name
EBGA TEPBGA Type Description
Mux
TCK
TDI
TDO
TMS
TRST#
AL4
E31
I JTAG Test Clock. This signal has an internal
---
weak pull-up resistor.
AK5
F29
I JTAG Test Data Input. This signal has an
---
internal weak pull-up resistor.
AH6
E30
O JTAG Test Data Output
---
AJ5
F28
I JTAG Test Mode Select. This signal has an
---
internal weak pull-up resistor.
AK4
E29
I JTAG Test Reset. This signal has an internal
---
weak pull-up resistor.
For normal JTAG operation, this signal
should be active at power-up.
If the JTAG interface is not being used, this
signal can be tied low.
Revision 3.0
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