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TMS570LS3137 Datasheet(PDF) 36 Page - Texas Instruments |
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TMS570LS3137 Datasheet(HTML) 36 Page - Texas Instruments |
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36 / 159 page  TMS570LS3137 SPNS162. – SEPTEMBER 2011 www.ti.com 2.4.2.16 System Module Interface Table 2-38. ZWT System Module Interface Terminal Signal Default Pull Type Description Type Pull State Signal Name 337 ZWT nPORRST W7 Input Pull Down 100uA Power-on reset, cold reset External power supply monitor circuitry must drive nPORRST low when any of the supplies to the microcontroller fall out of thespecified range. This terminal has a glitch filter. See Section 4.8. nRST B17 I/O Pull Up 100uA System reset, warm reset, bidirectional. The internal circuitry indicates any reset condition by driving nRST low. The external circuitry can assert a system reset by driving nRST low. To ensure that an external reset is not arbitrarily generated, TI recommends that an external pull-up resistor is connected to this terminal. This terminal has a glitch filter. See Section 4.8. nERROR B14 I/O Pull Down 20uA ESM Error Signal Indicates error of high severity. See Section 4.18. 2.4.2.17 Clock Inputs and Outputs Table 2-39. ZWT Clock Inputs and Outputs Terminal Signal Default Pull Type Description Type Pull State Signal Name 337 ZWT OSCIN K1 Input - - From external crystal/resonator, or external clock input KELVIN_GND L2 Input Kelvin ground for oscillator OSCOUT L1 Output To external crystal/resonator ECLK A12 I/O Pull Down Programmable, External prescaled clock 20uA output, or GIO. GIOA[5]/EXTCLKIN B5 Input Pull Down 20uA External clock input #1 ETMTRACECLKIN/EXTCLKIN2 R9 Input External clock input #2 VCCPLL P11 Input - Dedicated core supply for PLL's 36 Device Package and Terminal Functions Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback focus.ti.com: TMS570LS3137 |
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