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TMPR4956C Datasheet(PDF) 240 Page - Toshiba Semiconductor |
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TMPR4956C Datasheet(HTML) 240 Page - Toshiba Semiconductor |
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240 / 286 page  Chapter 14 JTAG Interface 14-2 14.2 Signal Summary The JTAG interface signals are listed below and shown in Figure 14.2.1. • JTDI JTAG serial data in • JTDO JTAG serial data out • JTMS JTAG test mode select • JTCK JTAG serial clock input • TRST* JTAG test reset input Figure 14.2.1 JTAG Interface Signals and Registers The JTAG boundary-scan mechanism (referred to in this chapter as JTAG mechanism) allows testing of the connections between the processor, the printed circuit board to which it is attached, and the other components on the circuit board. The JTAG mechanism does not provide any capability for testing the processor itself. 70 Instruction register TAP Controller 0 Bypass register 0 235 Boundary-scan register 31 0 Device Identification register JTDI pin JTDO pin JTMS pin JTCK pin TRST* pin |
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