Mackie Digital 8-Bus Service Manual page 25

The clocks
The diagram below shows the relationship between the various clock signals generated by the clock
card.
L/R CLK
DATA
MSB
SCLK
MCLK
Data valid on the falling edge of SCLK
J23
J23 pinouts show the signals to and from the clock card
Mackie Serial Digital Audio Format
24 Bit MSB Left Justified
J23
BACKPLANE
This is where the clock card plugs into the backplane
LSB
25
CLOCKS