Atmel SAM4L-EK Atmel ATSAM4L-EK ATSAM4L-EK Data Sheet
Product codes
ATSAM4L-EK
74
42023E–SAM–07/2013
ATSAM4L8/L4/L2
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
chain.
chain.
7.
In Shift-DR: The boundary-scan chain is shifted by the TCK input.
8.
Return to Run-Test/Idle.
8.7.14.3
INTEST
This instruction selects the boundary-scan chain as Data Register for testing internal logic in the
device. The logic inputs are determined by the boundary-scan chain, and the logic outputs are
captured by the boundary-scan chain. The device output pins are driven from the boundary-scan
chain.
device. The logic inputs are determined by the boundary-scan chain, and the logic outputs are
captured by the boundary-scan chain. The device output pins are driven from the boundary-scan
chain.
Starting in Run-Test/Idle, the INTEST instruction is accessed the following way:
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 internal logic
inputs.
inputs.
5.
Return to Run-Test/Idle.
6.
Select the DR Scan path.
7.
In Capture-DR: The data on the internal logic 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 boundary-scan chain is applied to internal logic inputs.
10. Return to Run-Test/Idle.
Table 8-6.
SAMPLE_PRELOAD Details
Instructions
Details
IR input value
0001 (0x1)
IR output value
p00s
DR Size
Depending on boundary-scan chain, see BSDL-file.
DR input value
Depending on boundary-scan chain, see BSDL-file.
DR output value
Depending on boundary-scan chain, see BSDL-file.
Table 8-7.
INTEST Details
Instructions
Details
IR input value
0100 (0x4)
IR output value
p001
DR Size
Depending on boundary-scan chain, see BSDL-file.
DR input value
Depending on boundary-scan chain, see BSDL-file.
DR output value
Depending on boundary-scan chain, see BSDL-file.