TXC-06412BIOG Transwitch Corporation, TXC-06412BIOG Datasheet - Page 166

• Manufacturer Part Number: TXC-06412BIOG
• Manufacturer: Transwitch Corporation

Specifications of TXC-06412BIOG

• Lead Free Status / RoHS Status: Not Compliant

PHAST-12P Device
DATA SHEET
TXC-06412B
PRELIMINARY TXC-06412B-MB, Ed. 2
June 2005
11.23.3 Boundary Scan Reset
11.23.4 Boundary Scan Chain
Specific control of the TRS lead is required in order to ensure that the boundary scan logic
does not interfere with normal device operation. This lead must either be held low, asserted
low, or asserted low then high (pulsed low), to asynchronously reset the Test Access Port
(TAP) controller during power-up of the PHAST-12P. If boundary scan testing is to be
performed and the lead is held low, then a pull-down resistor value must be chosen which will
allow the tester to drive this lead high, but still meet the V
Output and Input/Output Parameters’ section of this Data Sheet for worst case leakage
currents of all devices sharing this pull-down resistor.
A boundary scan description language (BSDL) source file is available via the Products page
of the TranSwitch Internet World Wide Web site at www.transwitch.com.
-
High Order Pointer Tracking, Retiming and Pointer Generation
Figure 50. Boundary Scan Schematic
TDI
Boundary Scan Register
Instruction Register
IN
Bypass Register
TAP Controller
Serial Test Data
Boundary Scan
DEVICE
Controls
LOGIC
CORE
OF
3
OUT
TDO
IL
requirements listed in the ‘Input,
-
Signal input and
output leads
1 6 6 o f 2 26