Power and ground – Digi NS9215 User Manual
Page 51
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P I N O U T ( 2 6 5 )
Power and ground
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51
If the RTC feature is not used, the inputs must be terminated as shown below.
If the RTC feature is used, see RTC clock and battery backup drawing on page 45.
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P o w e r a n d g r o u n d
N4
Bat_vdd
tie to 3.3V
R1
aux_comp
tie to ground
N3, M4
bat_vdd_reg
tie to ground
P2
x1_rtc_osc
tie to ground
R2
x2_rtc_osc
leave open
Pin
Signal
E7, E11, G7, G11, G13, L5, L7, L11, L13, N7, N11
Core VCC (1.8V)
A1. A17. C3, C15, E5, E9, E13, J5, J13, J15, N5, N9, N13, R3, R15, U1, U17 I/O VCC (3.3V)
G8, G9, G10, H7, H8, H9, H10, H11, J7, J8, J9, J10, J11, K7, K8, K9, K10,
K11, L8, L9, L10, M5
GND