PM7346 S/UNI-QJET
DATASHEET
PMC-960835
ISSUE 6
SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3
Pin Name
Type
Pin No. Function
TMS
Input
Input
C7
Test Mode Select (TMS).This signal
controls the test operations that can be
carried out using the IEEE P1149.1 test
access port. TMS is sampled on the rising
edge of TCK. TMS has an integral pull up
resistor.
TDI
D8
Test Data Input (TDI).This signal carries
test data into the S/UNI-QJET via the
IEEE P1149.1 test access port. TDI is
sampled on the rising edge of TCK. TDI
has an integral pull up resistor.
TDO
Output B7
Test Data Output (TDO).This signal
carries test data out of the S/UNI-QJET via
the IEEE P1149.1 test access port. TDO
is updated on the falling edge of TCK.
TDO is a tri-state output which is inactive
except when scanning of data is in
progress.
TRSTB
Input
A6
Active low Test Reset (TRSTB).This signal
provides an asynchronous S/UNI-QJET
test access port reset via the IEEE
P1149.1 test access port. TRSTB is a
Schmitt triggered input with an integral pull
up resistor.TRSTB must be asserted
during the power up sequence.
Note that if not used, TRSTB must be
connected to the RSTB input.
BIAS
Input
H20
U17
D4
+5V Bias (BIAS). When tied to +5V, the
BIAS input is used to bias the wells in the
input and I/O pads so that the pads can
tolerate 5V on their inputs without forward
biasing internal ESD protection devices.
When tied to VDD, the inputs and bi-
directional inputs will only tolerate input
levels up to VDD.
U4
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