User guide

Si471x-EVB
Preliminary Rev. 0.4 3
Baseboard Audio I/O Connectors/Devices:
J7 RCA input
J6 RCA output
J19 Line/SPDIF input
J30 Line/SPDIF output
U9 S/PDIF Translator
U10 CODEC
J5 Jumper: Analog audio right channel select (RCA or Line In)
J13 Jumper: Analog audio left channel select (RCA or Line In)
J41 Jumper: For GPO3/DCLK pin, select between GPO3 or DCLK
J44 Jumper: Si471x Audio1 select (Transmit or Receive)
J45 Jumper: Si471x Audio 2 select (Transmit or Receive)
Baseboard Clock Connectors/Devices:
X1 32.768 kHz crystal oscillator
J52 Jumper: select Int RCLK or Ext RCLK
J54 Ext RCLK SMA connector input
J57 Jumper: disable Int RCLK
Baseboard MCU Connectors/Devices:
U18 C8051F342 MCU
J79 USB connector to communicate with the MCU
J74 JTAG connector for the MCU
PB1 Push button to reset the MCU
D1 LED to confirm power supply to the MCU
Baseboard to Daughter Board Connectors:
J27 Si471x daughter card connector
J75 Expansion card connector (reserved)