Datasheet

VS1053b Datasheet
10 VS1053B REGISTERS
To enable I2S first write 0xc017 to SCI_WRAMADDR and 0xf0 to SCI_WRAM, then write
0xc040 to SCI_WRAMADDR and 0x0c to SCI_WRAM.
See application notes for more information.
Version: 1.13, 2011-05-27 78