Figure 3. External Control - Cirrus Logic Crystal CDB4228A Manual

VCC
D3
GREEN LED
I2C
SDOUT_LOAD
R41 R42
33k 374
S4
SW DPDT
CONTROL PORT MODE SELECT
SPI/2wire
GND GND
VCC
MODE_CTRL[9..0]
MODE_CTR L9 SMODE4
SMODE3
MODE_CTR L8
MODE_CTR L7 SMODE2
SMODE1
MODE_CTR L6
SMODE0
MODE_CTR L5
MCLK_SEL2
MODE_CTR L4
MCLK_SEL1
MODE_CTR L3
MODE_CTR L2 MCLK_SEL0
TX_MCLK_RATE1
MODE_CTR L1
TX_MCLK_RATE0
MODE_CTR L0
VCC
CTRL_MO DE X_CT RL
GND
VCC
RP10
10k RPACK9
VCC
R96
10k
ON
0
S6
SW DIP10
1
GND

Figure 3. External Control

D4
GREEN LED
PPORT
R43
374
SDIN_CTRL
S2
SW SPDT
CONTROL SOURCE
XTERNAL/PPORTn
VCC
VCC
D5
GREEN LED
SPDIF
R44
374
S3
SW SPDT
SERIAL CONTROL
DAP/SPDIFn
GND