TESSERA TK-78K0R/KG3+UD, Руководство пользователя

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4.5
Power supply
There are two choices to supply power to the board, USB or a 006P battery via
CN2. Please refer to 2.5 JP1 for the jumper setting.
Please replace the battery with a new one, if the voltage level goes down to
4.8V.
Below the voltage level of 4.8V, functions of the board are not guaranteed.
The battery voltage can be checked at the port as shown below.
9.0V Battery check
Signal
name
Terminal CPU
name at
connection
destination
Notes
BT_MONI P26/ANI6 33.8% of the battery output is available at
ANI6
For instance,
If the battery level is 9 V,
the level of the BT_MONI = 0.338
×
9.0 V
= 3.042 V
If the battery level is 6.5 V,
the level of the BT_MONI = 0.338
×
4.8 V
= 1.622 V
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