PM5364 pmc-sierra, PM5364 Datasheet - Page 240

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

13.22.1
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
TAP Controller
The TAP controller is a synchronous finite state machine clocked by the rising edge of primary
input, TCK. All state transitions are controlled using primary input, TMS. The finite state
machine is described below.
Figure 64 TAP Controller Finite State Machine
0
1
Test-Logic-Reset
Run-Test-Idle
TRSTB=0
0
1
1
0
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
Select-DR-Scan
Capture-DR
Update-DR
Pause-DR
Exit1-DR
Exit2-DR
Shift-DR
1
1
1
0
0
0
1
0
All transitions dependent on input TMS
0
0
1
1
1
0
Select-IR-Scan
Capture-IR
Update-IR
Pause-IR
Exit1-IR
Exit2-IR
Shift-IR
1
1
1
0
0
0
1
Released
0
0
0
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1
1