PM5380-BI PMC-Sierra, Inc., PM5380-BI Datasheet - Page 401

• Manufacturer Part Number: PM5380-BI
• Description: Network Interface, SATURN User Network Interface (8x155) Telecom Standard Product
• Manufacturer: PMC-Sierra, Inc.

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
13.13.2
Figure 32 TAP Controller Finite State Machine
States
Test-Logic-Reset
The test logic reset state is used to disable the TAP logic when the device is in normal mode
operation. The state is entered asynchronously by asserting input, TRSTB. The state is entered
synchronously regardless of the current TAP controller state by forcing input, TMS high for 5
TCK clock cycles. While in this state, the instruction register is set to the IDCODE instruction.
Run-Test-Idle
The run test/idle state is used to execute tests.
0
1
Test-Logic-Reset
Run-Test-Idle
TRSTB=0
0
1
1
0
Select-DR-Scan
Capture-DR
Update-DR
Pause-DR
Exit1-DR
Exit2-DR
Shift-DR
S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
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
0
0
0
1
1
Released
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