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S/UNI-JET Data Sheet
Released
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990267, Issue 3
50
Pin Name
Type
Pin
No.
Function
TDO
Output
B7
The Test Data Output (TDO) signal carries test data out
of the S/UNI-JET 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
The Active low Test Reset (TRSTB) signal provides an
asynchronous S/UNI-JET 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: If not used, TRSTB must be connected to the
RSTB input.
BIAS
Input
H20
U17
D4
U4
When tied to +5V, the +5V Bias (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.
VDD[1]
VDD[2]
VDD[3]
VDD[4]
VDD[5]
VDD[6]
VDD[7]
VDD[8]
VDD[9]
VDD[10]
VDD[11]
VDD[12]
VDD[13]
VDD[14]
VDD[15]
VDD[16]
VDD[17]
VDD[18]
VDD[19]
VDD[20]
VDD[21]
VDD[22]
VDD[23]
VDD[24]
VDD[25]
VDD[26]
VDD[27]
VDD[28]
VDD[29]
VDD[30]
VDD[31]
VDD[32]
Power
B2
B3
B18
B19
C2
C3
C18
C19
D7
D10
D14
G4
G17
G18
H17
K17
L4
P4
P17
R19
R20
U7
U11
U14
V2
V3
V18
V19
W2
W3
W18
W19
The DC Power pins should be connected to a well-
decoupled +3.3V DC supply.