PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 208

• Manufacturer Part Number: PM5366-PI
• Description: HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER AND M13 MULTIPLEXER
• Manufacturer: PMC-Sierra, Inc.

PRELIMINARY
DATASHEET
PMC-2010672
12.12 JTAG Support
PROPRIETARY AND CONFIDENTIAL
TRSTB
TMS
TCK
TDI
The TEMAP-84 supports the IEEE Boundary Scan Specification as described in
the IEEE 1149.1 standards. The Test Access Port (TAP) consists of the five
standard pins, TRSTB, TCK, TMS, TDI and TDO used to control the TAP
controller and the boundary scan registers. The TRSTB input is the active-low
reset signal used to reset the TAP controller. TCK is the test clock used to
sample data on input, TDI and to output data on output, TDO. The TMS input is
used to direct the TAP controller through its states. The basic boundary scan
architecture is shown below.
Figure 27
Controller
- Boundary Scan Architecture
Access
Test
Port
ISSUE 1
Device Identification
Control
Tri-state Enable
Select
Boundary Scan
Instruction
Register
Register
Register
Register
Decode
Bypass
and
196
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
Mux
DFF
AND M13 MULTIPLEXER
PM5366 TEMAP-84
TDO