BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 44

• Manufacturer Part Number: BMSKTOPASA900(DCE)
• Description: KIT STARTER TMPA900 USB JTAG
• Manufacturer: Toshiba
• Series: TOPASr
• Type: MCUr

Specifications of BMSKTOPASA900(DCE)

• Contents: Evaluation Board, Cable(s), Software and Documentation
• For Use With/related Products: TMPA900CMXBG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.2.12
TMPA900CM.
This section describes the instructions supported by the JTAG controller cells of the
(1) EXTEST instruction
boundary scan register using the SAMPLE/PRELOAD instruction. If the boundary scan
register is not reset, indeterminate data will be transferred in the Update-DR state and bus
conflicts between ICs may occur. Figure 3.2.7 shows data flow when the EXTEST
instruction is selected.
1.
2.
3.
4.
5.
6.
7.
8.
Instructions Supported by the JTAG Controller Cells
instruction permits BSR cells at output pins to shift out test patterns in the Update-DR
state and those at input pins to capture test results in the Capture-DR state.
The EXTEST instruction is used for external interconnect tests. The EXTEST
Typically, before EXTEST is executed, the initialization pattern is shifted into the
The following steps describe the basic test procedure of the external interconnect test.
Repeat steps 6 to 8 for each test pattern.
Input
TDI
Reset the TAP controller to the Test-Logic-Reset state.
Load the instruction register with the SAMPLE/PRELOAD instruction. This causes
the boundary scan register to be connected between TDI and TDO.
Reset the boundary scan register by shifting certain data in.
Load the test pattern into the boundary scan register.
Load the instruction register with the EXTEST instruction.
Capture the data applied to the input pin into the boundary scan register.
Shift out the captured data while simultaneously shifting the next test pattern in.
Send out the test pattern in the boundary scan register at the output on the output pin.
Figure 3.2.7 Test Data Flow when the EXTEST Instruction is Selected
TENTATIVE
TMPA900CM- 43
Boundary scan path
Core logic
Output
TDO
TMPA900CM
2009-10-14