© National Instruments
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NI sbRIO-9651 System on Module Carrier Board Design Guide
Reset Implementation on the Reference Carrier Board
Figure 1-7 shows a schematic design for the Reset implementation on the reference carrier
board.
Figure 1-7.
Reset Reference Schematic
Refer to the
SYS_RST#
and
CARRIER_RST#
sections of the
NI sbRIO-9651 System on Module
OEM Device Specifications
for more information about the behavior of the Reset signals.
Reference Schematic Design Considerations
Table 1-16 lists design considerations for the schematic shown in Figure 1-7.
Table 1-16.
Reset Reference Schematic Design Considerations
Consideration
Notes
Series
termination
When SYS_RST# is driven, you must place a series termination resistor
at the driver. When the driver is a mechanical switch, placing series
termination is especially important due to the low output impedance of
the switch.
S
Y
S
_R
S
T#
RE
S
ET_
S
W #
2
C
3
C0402
S
PARE
1
2
S
W
3
720176-01
1
2
3
4
+
3
.
3
V
R4
1K
0.5%
1
2
2
1
R2
68.1 0.5%
1/16 W