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PINOUT (265)
System mode
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RTC clock and
battery backup
drawing
Note: If RTC battery backup is not used, the following connection changes can be
made.
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System mode
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