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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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UPSD3422EB40U6 데이터시트(PDF) 263 Page - STMicroelectronics |
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UPSD3422EB40U6 데이터시트(HTML) 263 Page - STMicroelectronics |
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263 / 300 page  Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) UPSD3422, UPSD3433, UPSD3434, UPSD3454 PSD module 263/300 Figure 94. Example of chaining UPSD34xx devices 28.6.8 Debugging the 8032 MCU module The 8032 on the MCU module may be debugged in-circuit using the same four basic JTAG signals as used for JTAG ISP (TDI, TDO, TCK, TMS). The signals TSTAT and TERR are not needed for debugging, and they will not create a problem if they exist on the circuit board while debugging. The same connector specified in Figure 93 on page 262 can be used for ISP or for 8032 debugging. There are 3rd party suppliers of UPSD34xx JTAG debugging equipment (check www.st.com/psm). These are small pods which connect to a PC (or notebook computer) using a USB interface, and they are driven by an 8032 Integrated Development Environment (IDE) running on the PC. Standard debugging features are provided through this JTAG interface such as single-step, breakpoints, trace, memory dump and fill, and others. There is also a dedicated Debug pin (shown in Figure 90 on page 258) which can be configured as an output to trigger external devices upon a programmable internal event (e.g., breakpoint match), or the pin can be configured as an input so an external device can initiate an internal debug event (e.g., break execution). The Debug pin function is configured by the 8032 IDE debug software tool. See Section 12: Debug unit on page 60 for more details. The Debug signal should always be pulled up externally with a weak pull-up (100 k Ω minimum) to VCC even if nothing is connected to it, as shown in Figure 91 on page 259 and Figure 92 on page 261. Device 1 µPSD34xx uPSD34xx TMS TCK TDI TDO IEEE 1149.1 Compliant Device Device 2 Device N System Reset Circuitry TMS TCK TDI TDO TSTAT TERR CIRCUIT BOARD JTAG CONN. VCC TMS TCK TDI TSTAT TERR TDO RST GND 100K 100K 100K 100K 100K 10K 100K JTAG Programming or Test Equipment Connects Here Optional Optional TMS TCK TDI TDO TSTAT TERR AI10459 Obsolete Product(s) - Obsolete Product(s) |
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