LC89058W-E Datasheet, PDF (17/64 Pages) Sanyo Semicon Device – Digital Audio Interface Receiver

LC89058W-E
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9.2 Chip Address Settings (MOUT, AUDIO)
• The LC89058W-E comes with a function to set a unique chip address to allow the use of several LC89058W-E on the
same microcontroller interface bus.
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• In chip address setting, connect a 10kΩ pull-down or pull-up resistor to MOUT and AUDIO. By this setting, 4 kinds
of chip addresses can be set at a maximum.
• Chip addresses in the microcontroller interface are set with CAL and CAU provided as the first two bits on the LSB
side. CAL corresponds to the lower chip address and CAU to the higher chip address.
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• Command writing is enabled by making the chip address settings with MOUT and AUDIO identical to the chip
addresses sent from the microcontroller.
• The chip address setting is required even when only one LC89058W-E is used in the system. If the chip address is not
set, the chip address is undefined and the microcontroller cannot control the system. When the microcontroller is not
used, a chip address-setting pin is input open while XMODE is "L". Be sure to connect either a pull-down resistor or a
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pull-up resistor to MOUT and AUDIO.
Table 9.3: Chip Address Settings (Resistor Connection)
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AUDIO
MOUT
CAU
CAL
Pull-down
Pull-down
0
0
Pull-down
Pull-up
0
1
Pull-up
Pull-down
1
0
Pull-up
Pull-up
1
1
LC89058W-E
MOUT
AUDIO
CKST
INT
pull-up 10kΩ
Connect to
different circuits
pull-down 10kΩ
Setting Contents of Above Figure
Chip address setting
Master or slave setting
Pins 44 to 47 input or output setting
CAL=CAU=0
Master
Pins 44 to 47 output pins
Figure 9.2 Setting Example of Function Setting Input Pin
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