RS8234EBGC Mindspeed Technologies, RS8234EBGC Datasheet - Page 372

• Manufacturer Part Number: RS8234EBGC
• Description: RS8234EBGC ATM XBR SAR
• Manufacturer: Mindspeed Technologies

Appendix A Boundary Scan
A.2 BYPASS Register
A.2 BYPASS Register
The BYPASS Register is a 1-bit shift register used to pass TDI data to TDO to facilitate the testing of other
devices in the scan path without having to shift the data patterns through the complete Boundary Scan Register
of the RS8234.
A.3 Boundary Scan Register
The Boundary Scan Register consists of two different types of registers corresponding to IEEE Std.
1149.1a-1993 attributes and definitions. These register names are STD_1149_1_1993 Standard Boundary Cell
names BC-1, and BC-7.
A.4 Boundary Scan Register Cells
Table A-4
A-4
Cell 0 is closest to TDO in the chain.
These are the Cell Type definitions:
• Output3 = Output-three-state
• Input = Input-Observe
• Bidir = Reversible cell for bidirectional pin
• Control = Output-Control
• Controlr = Output-Control that is forced to its disable state in the Test-Logic-Reset controller state.
• Internal = Control-and-Observe internal cell, not associated with an I/O pin.
All controlling cells put their respective output cell into the inactive state with a value of one.
defines the Boundary Scan Register cells.
Mindspeed Technologies
ATM ServiceSAR Plus with xBR Traffic Management
™
28234-DSH-001-B
RS8234