Datasheet

TMS570LS1224
www.ti.com SPNS190B –OCTOBER 2012–REVISED FEBRUARY 2015
4.3.1.13 System Module Interface
Table 4-13. PGE System Module Interface
Terminal Signal Reset Pull Pull Type Description
Type State
Signal Name 144
PGE
nPORRST 46 Input Pull Down Fixed 100 µA Power-on reset, cold reset
Pull Down External power supply
monitor circuitry must
drive nPORRST low when
any of the supplies to the
microcontroller fall out of
the specified range. This
terminal has a glitch filter.
See Section 6.8.
nRST 116 I/O Pull Up Fixed 100 µA System reset, warm reset,
Pull Up 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 6.8.
nERROR 117 I/O Pull Down Fixed 20 µA ESM Error Signal
Pull Down Indicates error of high
severity. See
Section 6.18.
4.3.1.14 Clock Inputs and Outputs
Table 4-14. PGE Clock Inputs and Outputs
Terminal Signal Reset Pull Pull Type Description
Type State
Signal Name 144
PGE
OSCIN 18 Input N/A None From external
crystal/resonator, or
external clock input
KELVIN_GND 19 Input Kelvin ground for oscillator
OSCOUT 20 Output To external
crystal/resonator
ECLK 119 I/O Pull Down Programmable, External prescaled clock
20 µA output, or GPIO.
GIOA[5]/EXTCLKIN/EPWM1A /N2HET1_PIN_nDIS 14 Input Pull Down Fixed 20 µA External clock input #1
Pull Down
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