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R1Q3A7236AB Folha de dados(PDF) 26 Page - Renesas Technology Corp |
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R1Q3A7236AB Folha de dados(HTML) 26 Page - Renesas Technology Corp |
26 / 39 page R1QBA72 / R1QEA72 Series Rev. 0.11 : 2013.01.15 PAGE:26 JTAG Specification These products support a limited set of JTAG functions as in IEEE standard 1149.1. Disabling the Test Access Port It is possible to use this device without utilizing the TAP. To disable the TAP controller without interfering with normal operation of the device, TCK must be tied to V SS to preclude mid level inputs. TDI and TMS are internally pulled up and may be unconnected, or may be connected to VDD through a pull up resistor. TDO should be left unconnected. Test Access Port (TAP) Pins Symbol I/O Pin assignments Description Notes TCK 2R Test clock input. All inputs are captured on the rising edge of TCK and all outputs propagate from the falling edge of TCK. TMS 10R Test mode select. This is the command input for the TAP controller state machine. TDI 11R Test data input. This is the input side of the serial registers placed between TDI and TDO. The register placed between TDI and TDO is determined by the state of the TAP controller state machine and the instruction that is currently loaded in the TAP instruction. TDO 1R Test data output. Output changes in response to the falling edge of TCK. This is the output side of the serial registers placed between TDI and TDO. Notes: The device does not have TRST (TAP reset). The Test-Logic Reset state is entered while TMS is held high for five rising edges of TCK. The TAP controller state is also reset on SRAM POWER-UP. Common R10DS0170EJ0011 |
Nº de peça semelhante - R1Q3A7236AB |
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Descrição semelhante - R1Q3A7236AB |
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