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Table 9-19 USIM card circuit
9.4.16 microSD Card
The microSD card connector's SD_DETECT pin is used to detect the insertion of a microSD
card. When a microSD card is inserted, the pin is grounded and its voltage is at a low level.
When no microSD is inserted, its voltage is at a high level. The U1402 is an electromagnetic
interference (EMI) and ESD protection component for the microSD card.
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