RM48L952 Datasheet, PDF (19/156 Pages) Texas Instruments – RM48L952 16/32-Bit RISC Flash Microcontroller

RM48L952
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2.4.1.12 System Module Interface
nPORRST
Table 2-17. PGE System Module Interface
Terminal
Signal Name
144
PGE
46
Signal Default
Type Pull State
Pull Type
Input Pull Down 100uA
nRST
116
I/O
Pull Up 100uA
nERROR
117
I/O Pull Down 20uA
SPNS177 – SEPTEMBER 2011
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
thespecified range. This
terminal has a glitch filter.
See Section 4.8.
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.
ESM Error Signal
Indicates error of high
severity. See
Section 4.18.
2.4.1.13 Clock Inputs and Outputs
OSCIN
KELVIN_GND
OSCOUT
ECLK
GIOA[5]/EXTCLKIN
Table 2-18. PGE Clock Inputs and Outputs
Terminal
Signal Name
144
PGE
18
19
20
119
14
Signal Default
Type Pull State
Pull Type
Description
Input
-
-
Input
Output
I/O
Input
Pull Down Programmable,
20uA
Pull Down 20uA
From external
crystal/resonator, or
external clock input
Kelvin ground for oscillator
To external
crystal/resonator
External prescaled clock
output, or GIO.
External clock input #1
Copyright © 2011, Texas Instruments Incorporated
Device Package and Terminal Functions
19
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