Figure 5: Onboard Digital Audio Source Section
Section 3 – I2C Section:
The SSM2518 can operate with or without I2C control. If it is desired to evaluate the part in Stand Alone mode,
simply insert a jumper across the SAMOD and DVDD terminals of P15. To put the part into I2C mode, insert a jumper
across the SAMOD and GND terminals of P15.
Stand Alone Mode Operation: Please refer to
Table 1
for the functionality available while in Stand Alone mode.
I2C Mode Function
Stand Alone
Mode Function
Stand Alone Mode Settings
SCL (SK2, Pin 3)
FORMAT
0 – I2S
1 – Left Justified
SDA (SK2, Pin 2)
MCLK_SEL
0 – 256fs MCLK
1 – 384fs MCLK
SD (P13)
SD
0 – Shutdown/Mute
1 – Normal Operation
ADDR (P14)
GAIN
0 - +12dB Gain
1 – 0dB Gain
Table 1: Stand Alone Mode Settings
