TMS570LS0914_17 Datasheet, PDF (27/163 Pages) Texas Instruments – 16- and 32-Bit RISC Flash Microcontroller

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TMS570LS0914
SPNS225D – JUNE 2013 – REVISED NOVEMBER 2016
4.2.2.11 System Module Interface
TERMINAL
SIGNAL NAME
nPORRST
nRST
nERROR
Table 4-30. PZ System Module Interface
100 PZ
SIGNAL
TYPE
31
Input
RESET
PULL
STATE
Pullup
81
I/O
Pullup
82
I/O
Pulldown
PULL TYPE
100 µA
100 µA
20 µA
DESCRIPTION
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 the
specified range. This terminal has a glitch filter. See .
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
pullup resistor is connected to this terminal. This
terminal has a glitch filter. See .
ESM Error Signal. Indicates error of high severity. See .
4.2.2.12 Clock Inputs and Outputs
Table 4-31. PZ Clock Inputs and Outputs
TERMINAL
SIGNAL NAME
100 PZ
OSCIN
14
KELVIN_GND
15
OSCOUT
16
ECLK
84
GIOA[5]/INT[5]/EXTCLKIN/EPWM1A
/N2HET1_PIN_nDIS
10
SIGNAL
TYPE
Input
Input
Output
I/O
Input
RESET
PULL
STATE
–
–
–
Pulldown
Pulldown
PULL TYPE
DESCRIPTION
–
From external crystal/resonator, or external clock input
–
Dedicated ground for oscillator
–
To external crystal/resonator
Programmable, 20 µA External prescaled clock output, or GIO.
20 µA
External Clock In
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Terminal Configuration and Functions
27
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