Cirrus Logic ARM CDB89712, User Manual

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CDB89712
4-10 DS502UM2
4.6 CONTROLLING POWER STATES
4.6.1 Toggle Switch Settings for Controlling Power / Standby / Battery States
The switch settings described in Table 4-9 control the operating state for either the battery or an
external power source. Note: toggle down is toggle switched toward the prototype area.
4.6.2 Setting Toggle Switches to Manage Power
Switch Label Signal Switch Description
BATCHG nBATCHG Default: Off
Simulates low battery
condition
PWRFL nPWRFL Default: Off
Forces CS89712 into
Standby state
BATOK BATOK Default: No battery
installed
Battery OK
EXTPWR nEXTPWR External power Off
Default: External power On
Power Main Power (not a processor pin, other than
V
DD
/V
PROC
).
Power Off
Power On
Table 4-9. Toggle Switch Assignments
Switch Name Signal Switch Position
Signal Active
Switch Position
Signal Inactive
BATOK BATOK
BATCHG nBATCHG
PWRFL nPWRFL
EXTPWR nEXTPWR
Table 4-10. Power Management Switches