PM5364 pmc-sierra, PM5364 Datasheet - Page 66

• Manufacturer Part Number: PM5364
• Description: Tupp 2488 Assp Telecom Standard
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
Pin Name
TMS
TDI
TDO
TRSTB
SCANB
Analog Miscellaneous Signals (Line Side) (10 pins)
Type
Input
Input
Tristate
Output
Input
Input
Pin No.
AF1
AE2
AD3
AE1
AM29
Test Interface (1 pin)
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
Function
Test Mode Select. The JTAG test mode select
signal, TMS, controls the test operations that are
carried out using the IEEE P1149.1 test access
port. TMS is sampled on the rising edge of TCK.
TMS has an internal pull-up resistor of 30 to 50
kOhms. It is recommended to use an external pull-
up resistor of 4.7 kOhms.
Test Data Input. The JTAG test data input signal,
TDI, carries test data into the TUPP2488 via the
IEEE P1149.1 test access port. TDI is sampled on
the rising edge of TCK. TDI has an internal pull-up
resistor of 30 to 50 kOhms. It is recommended to
use an external pull-up resistor of 4.7 kOhms.
Test Data Output. The JTAG test data output
signal, TDO, carries test data out of the TUPP2488
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.
Test Reset Bar. The active low JTAG test reset
signal, TRSTB, provides an asynchronous
TUPP2488 test access port reset via the IEEE
P1149.1 test access port. TRSTB is a Schmitt
triggered input with an internal pull-up resistor of 30
to 50 kOhms. It is recommended to use an external
pull-up resistor of 4.7 kOhms.
Note that for normal device operation, the
boundary scan state machine must be reset. This
may be done by strobing TRSTB low at the same
time as the active-low chip reset pin. If the
boundary scan state machine is not reset, some or
all device I/O pins may be held in test modes.
This pin is for test purpose. For normal operation
this pin should be tied to VDDO.
Released
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