Figure 182. tap controller (finite-state machine) – Intel 386 User Manual

Page 519

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Intel386™ EX EMBEDDED MICROPROCESSOR USER’S MANUAL

18-6

Figure 18-2. TAP Controller (Finite-State Machine)

A2356-01

Update -

IR

Exit2 -

IR

Pause -

IR

Exit1 -

IR

Shift -

IR

Capture -

IR

Select -

IR - Scan

Update -

DR

Exit2 -

DR

Pause -

DR

Exit1 -

DR

Shift -

DR

Capture -

DR

Select -

DR - Scan

Run - Test/

Idle

Test - Logic

- Reset

1

0

1

1

0

1

0

0

1

0

1

1

0

1

0

0

1

1

0

0

1

1

1

0

1

0

0

0

0

1

0

1