BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 37

• 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

Bo ard
outp ut
Bo ard
inp ut
state, the data on the TDI pin is shifted into the bypass register, and the bypass register
output shifts to the date out on the TDO output pin.
board-level devices in the serial boundary-scan chain, which are not required for a specific
test. The logical location of the bypass register in the boundary-scan chain is shown in
Figure 3.2.4 .
remains active in the board-level test data path.
The bypass register is 1 bit wide. When the TAP controller is in the Shift-DR (bypass)
In essence, the bypass register is an alternative route which allows bypassing of
Use of the bypass register speeds up access to the boundary scan register in the IC that
TDI
IC p ackag e
TDO
TDO
TDI
Board
Figure 3.2.4 Bypass Register Operation
TDO
TDI
TENTATIVE
TMPA900CM- 36
TDO
TDI
TD I
TD O
Bo unda ry sca n regist er pad ce ll
Re gister
Bypass
TMPA900CM
2009-10-14