AT32UC3L064-D3HES ATMEL [ATMEL Corporation], AT32UC3L064-D3HES Datasheet - Page 745

• Manufacturer Part Number: AT32UC3L064-D3HES
• Manufacturer: ATMEL [ATMEL Corporation]

31.5.2.3
32099D–06/2010
EXTEST
Table 31-13. SAMPLE_PRELOAD Details
This instruction selects the boundary-scan chain as Data Register for testing circuitry external to
the 32-bit AVR package. The contents of the latched outputs of the boundary-scan chain is
driven out as soon as the JTAG IR-register is loaded with the EXTEST instruction.
Starting in Run-Test/Idle, the EXTEST instruction is accessed the following way:
Table 31-14. EXTEST Details
Instructions
IR input value
IR output value
DR Size
DR input value
DR output value
Instructions
IR input value
IR output value
DR Size
DR input value
DR output value
1. Select the IR Scan path.
2. In Capture-IR: The IR output value is latched into the shift register.
3. In Shift-IR: The instruction register is shifted by the TCK input.
4. Return to Run-Test/Idle.
5. Select the DR Scan path.
6. In Capture-DR: The Data on the external pins are sampled into the boundary-scan
7. In Shift-DR: The boundary-scan chain is shifted by the TCK input.
8. Return to Run-Test/Idle.
1. Select the IR Scan path.
2. In Capture-IR: The IR output value is latched into the shift register.
3. In Shift-IR: The instruction register is shifted by the TCK input.
4. In Update-IR: The data from the boundary-scan chain is applied to the output pins.
5. Return to Run-Test/Idle.
6. Select the DR Scan path.
7. In Capture-DR: The data on the external pins is sampled into the boundary-scan chain.
8. In Shift-DR: The boundary-scan chain is shifted by the TCK input.
9. In Update-DR: The data from the scan chain is applied to the output pins.
10. Return to Run-Test/Idle.
chain.
Details
00010 (0x02)
p0001
Depending on boundary-scan chain, see BSDL-file.
Depending on boundary-scan chain, see BSDL-file.
Depending on boundary-scan chain, see BSDL-file.
Details
00011 (0x03)
p0001
Depending on boundary-scan chain, see BSDL-file.
Depending on boundary-scan chain, see BSDL-file.
Depending on boundary-scan chain, see BSDL-file.
AT32UC3L016/32/64
745