80KSBR200 Datasheet, PDF (136/172 Pages) Integrated Device Technology – sRIO SERIAL BUFFER FLOW-CONTROL DEVICE

IDT 80KSBR200
Notes
Advanced Datasheet*
Pin Name Type
Description
TDI
Input JTAG Input
Serial data input for BSC chain, Instruction Register, IDCODE register, and BYPASS register
(internal pull-up)
TDO
Output JTAG Output
Serial data out. Tri-stated except when shifting while in Shift-DR and SHIFT-IR TAP controller
states.
Table 103 JTAG Pin Descriptions (Part 2 of 2)
The system logic TAP controller transitions from state to state, according to the value present on JTMS, as sampled on
the rising edge of TCK. The Test-Logic Reset state can be reached either by asserting TRST or by applying a 1 to TMS for
five consecutive cycles of TCK. A state diagram for the TAP controller appears in Figure 41. The value next to state repre-
sent the value that must be applied to TMS on the next rising edge of TCK, to transition in the direction of the associated
arrow.
1 _{Test- Logic}
Reset
0
0 Run-Test/
Idle
1
Select-
DR-Scan
0
1 Capture-DR
1
1
Select-
IR-Scan
0
1 _Capture-IR
0
0
Shift-DR
0
0
Shift-IR
1
Exit1 -DR 1
1
Exit1-IR
1
0
0
Pause-DR
0
Pause-IR
0
1
0 Exit2-DR
1
0 Exit2-IR
1
Update-DR
010
1
Update-IR
1
0
Figure 42 State Diagram of the 80KSBR200’s TAP Controller
15.4 Test Data Register (DR)
The Test Data register contains the following:
◆ _{The Bypass register}
◆ _{The Boundary Scan registers}
◆ _{The Device ID register}
These registers are connected in parallel between a common serial input and a common serial data output, and are
described in the following sections. For more detailed descriptions, refer to IEEE Standard Test Access port (IEEE Std.
1149.1-1990).
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March 19, 2007
„2005 Integrated Device Technology, Inc. All rights reserved. Advanced Datasheet for informational purposes only. Product specifications subject to change without notice.NOT AN OFFER FOR SALE The information presented herein is subject to a
Non-Disclosure Agreement (NDA) and is for planning purposes only. Nothing contained in this presentation, whether verbal or written, is intended as, or shall have the effect of, a sale or an offer for sale that creates a contractual power of acceptance.