Quectel LTE OPEN EVB - Table 7: Codec Function Gpio Configuration

LTE Module Series
LTE OPEN EVB User Guide
LTE_OPEN_EVB_User_Guide 27 / 62
Codec board
EVB
J0804
Figure 14: Connection between Codec Board and EVB
If digital audio codec board is intended to be used, then please switch S1001 to the right and short signals
illustrated in the figure and table below with the jumper cap.
Figure 15: Codec Function GPIO Configuration
Table 7: Codec Function GPIO Configuration
Pin No.
Pin Name
Operation
Pin No.
Pin Name
Pin 19 (J0202)
PCM_SYNC
Shorted to
Pin 20 (J0202)
GPIO_79
Pin 17 (J0202)
PCM_CLK
Shorted to
Pin 18 (J0202)
GPIO_78
Pin 15 (J0202)
PCM_OUT
Shorted to
Pin 16 (J0202)
GPIO_77
Pin 13 (J0202)
PCM_IN
Shorted to
Pin 14 (J0202)
GPIO_76
Pin 14 (J0201)
I2C_SDA
Shorted to
Pin 13 (J0201)
GPIO_6
Pin 17 (J0201)
I2C_SCA
Shorted to
Pin 16 (J0201)
GPIO_7