3 master mode clock dividers, Figure 13. master mode clock dividers, 4 slave mode audio clocking with auto-detect – Cirrus Logic CS5368 User Manual
Page 24: Figure 14. slave mode auto-detect speed, Cs5368, Mclk dividers sample rate dividers, Mclk dividers, Speed mode
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DS624F5
CS5368
4.6.3 Master Mode Clock Dividers
shows the configuration of the MCLK dividers and the sample rate dividers for Master Mode, in-
cluding the significance of each MCLK divider pin (in Stand-Alone Mode) or bit (in Control Port Mode).
Figure 13. Master Mode Clock Dividers
4.6.4 Slave Mode Audio Clocking With Auto-Detect
In Slave Mode, CS5368 auto-detects speed mode, which eliminates the need to configure M1 and M0 when
changing among speed modes. The external MCLK is subject to clock dividers as set by the clock divider
pins in Stand-Alone Mode or the clock divider bits in Control Port Mode. The CS5368 compares the divided-
down, internal MCLK to the incoming LRCK/FS and sets the speed mode based on the MCLK/LRCK ratio
as shown in
.
Figure 14. Slave Mode Auto-Detect Speed
ч 128
ч 64
M0
M1
LRCK/ FS
Single
Speed
Quad
Speed
Double
Speed
00
01
10
ч 2
ч 4
ч 1
SCLK
Single
Speed
Quad
Speed
Double
Speed
00
01
10
÷ 256
pin
CLKMODE
MDIV
n/a
MCLK
ч 1
ч 1.5
ч 2
ч 1
ч 2
ч 1
bit
MDIV1
MDIV0
0/1
0/1
0/1
MCLK DIVIDERS
SAMPLE RATE DIVIDERS
CLKMODE
128
64
Single-Speed
256
pin
CLKMODE
MDIV
n/a
External
MCLK
ч 1
ч 1.5
ч 2
ч 1
ч 2
ч 1
bit
MDIV1
MDIV0
0/1
0/1
0/1
MCLK DIVIDERS
CLKMODE
÷LRCK
LRCK
Double-Speed
Quad-Speed
SPEED MODE
Internal
MCLK