User's Manual

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SDCC_DATA0, SDCC_DATA1, SDCC_DATA2, SDCC_DATA3 and SDCC_CMD、SDCC_CLK. Just like C301,
C302, C303, C304, C305 and C306 in Figure 2-9.
4) To avoid static electricity in Micro SD card socket, it is recommended to use the ESD protection device which
should be close to the Micro SD card socket as possible.
Figure 2-9 The reference circuit of Micro SD card interface
2.2.6 Audio interface
The audio signals include a pair of input differential signals（MIC1_P, MIC1_N) and a pair of output differential
signals (EAR1OP, EAR1OR).
2.2.6.1 Description
The audio signals provided by U6100 are described in Table 2-8 below.
Table 2-8 U6100 audio signal description
Pins in
board to board connector
SN. of 60Pin
board to board connector
Description
EAROP 15
Audio output differential signal +
EARON 17
Audio output differential signal -
MIC_P 9
Audio input differential signal +