Digi NS9215 Benutzerhandbuch
. . . . .
P I N O U T ( 2 6 5 )
System mode
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45
RTC clock and
battery backup
drawing
battery backup
drawing
Note: If RTC battery backup is not used, the following connection changes can be
made.
made.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S y s t e m m o d e
v
N3, M4
bat_vdd_reg
tie to 1.8V
32.788kHz
crystal load capacitors tie to N3, M4 (1.8V)
N4
bat_vdd
tie to 3.3V
R1
aux_comp
tie to ground
Pin
Signal
U/D
I/O
OD
Description
M13
sys_mode_2
I
test mode pins
M14
sys_mode_1
I
test mode pins
L14
sys_mode_0
I
test mode pins