xcore.ai Multichannel Audio Board 1v1 Hardware Manual
Figure 7:
Analog output
stage
allow the common TDM line to the 8 output channels to connect to any one of the four
digital outputs on the xcore.
Mode
Shorting Jumper Position
J3
J8
J10
J12
I2S
2-3
2-3
2-3
2-3
TDM output from X_DAC_D0
1-2, 3-4
1-2
1-2
1-2
TDM output from X_DAC_D1
1-2
1-2, 3-4
1-2
1-2
TDM output from X_DAC_D2
1-2
1-2
1-2, 3-4
1-2
TDM output from X_DAC_D3
1-2
1-2
1-2
1-2, 3-4
Figure 8:
Analog output
configuration
Pin 1 of each jumper is denoted by a triangle on the silk-screen.
The DAC registers are accessed via the I2C bus - see §
Notes:
·
Details of the audio clocking scheme can be found in §
8
