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TMS570LS3137 Datasheet(PDF) 19 Page - Texas Instruments |
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TMS570LS3137 Datasheet(HTML) 19 Page - Texas Instruments |
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19 / 173 page  TMS570LS3137 www.ti.com SPNS162C – APRIL 2012 – REVISED APRIL 2015 Table 4-14. PGE System Module Interface (continued) TERMINAL RESET SIGNAL PULL PULL TYPE DESCRIPTION 144 TYPE SIGNAL NAME STATE PGE 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 Fixed 100 µA nRST 116 I/O Pullup driving nRST low. To ensure Pullup that an external reset is not arbitrarily generated, TI recommends that an external pullup resistor is connected to this terminal. This terminal has a glitch filter. See Section 6.8. ESM Error Signal Fixed 20 µA nERROR 117 I/O Pulldown Indicates error of high Pulldown severity. See Section 6.18. 4.3.1.13 Clock Inputs and Outputs Table 4-15. PGE Clock Inputs and Outputs TERMINAL RESET SIGNAL PULL PULL TYPE DESCRIPTION 144 TYPE SIGNAL NAME STATE PGE From external OSCIN 18 Input crystal/resonator, or external clock input N/A None KELVIN_GND 19 Input Kelvin ground for oscillator OSCOUT 20 Output To external crystal/resonator Programmable, 20 External prescaled clock ECLK 119 I/O Pulldown µA output, or GIO. GIOA[5]/EXTCLKIN/N2HET1_PIN_nDIS 14 Input Pulldown 20 µA External clock input #1 4.3.1.14 Test and Debug Modules Interface Table 4-16. PGE Test and Debug Modules Interface TERMINAL RESET SIGNAL PULL PULL TYPE DESCRIPTION SIGNAL NAME 144 TYPE STATE PGE Test enable. This terminal must be connected to ground TEST 34 I/O Fixed 100 µA directly or via a pulldown Pulldown Pulldown resistor. nTRST 109 Input JTAG test hardware reset RTCK 113 Output N/A None JTAG return test clock Fixed 100 µA TCK 112 Input Pulldown JTAG test clock Pulldown Fixed 100 µA TDI 110 I/O Pullup JTAG test data in Pullup 100 µA TDO 111 Output None JTAG test data out Pulldown Fixed 100 µA TMS 108 I/O Pullup JTAG test select Pullup Copyright © 2012–2015, Texas Instruments Incorporated Terminal Configuration and Functions 19 Submit Documentation Feedback |
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