LC89057W-VF4A-E SANYO [Sanyo Semicon Device], LC89057W-VF4A-E Datasheet - Page 34

• Manufacturer Part Number: LC89057W-VF4A-E
• Description: Digital Audio Interface Transceiver
• Manufacturer: SANYO [Sanyo Semicon Device]

11.1.5 Modulated output of SDIN input data
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11.1.6 Monaural output
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11.2 General-Purpose I/Os (PIO0, PIO1, PIO2, PIO3 PIOEN)
11.2.1 Initial settings
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11.2.2 I/O settings
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(1) To output data from general-purpose I/Os, set PIOEN to "L".
(2) Set the data to be output to CCB address 0xE8, command address 0x10, and input registers DI12 to DI15.
(3) During write operation, be sure to input "0" to DI8 to DI11 of modulation setting registers.
(4) The data written to PI0 to PI3 is output from the general-purpose I/Os.
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(1) To input data to general-purpose I/Os, set PIOEN to "H".
(2) The input data is saved in CCB address 0xEB and output registers DO0 to DO3.
(3) Data can be sent to the microcontroller by reading PO0 to PO3.
Chapter 12 Microcontroller Interface for details.
preambles.
SDIN input data is modulated and its output can be fetched from TXO and RXOUT.
To modulate SDIN input data, set it with TDTSEL.
Input a clock synchronized with SDIN to TMCK, TBCK, and TLRCK.
The SDIN input data format must be identical to the setting used during modulation processing.
It is possible to output only single channel data of the input data at half the rate of the input fs with TXMOD[1:0].
This operation maintains the bi-phase modulation regularity, but there is no correlation between the data and
Channel status write is synchronized with the output rate.
The validity flag and user data are written in units of frame. Input the same data to the L and R channels.
To process the stereo signals of two channels with this setting, two units of LC89057W-VF4A-E are required.
The modulation function and general-purpose parallel I/Os share the same pins and therefore they cannot be used
The general-purpose parallel I/O applies parallel-conversion to the serial data input from the microcontroller interface,
4-bit general-purpose I/Os cannot be used with both input and output mixed. Switching between input and output is
Data handling for general-purpose I/Os is done using the microcontroller interface and write/read registers. See
General-purpose I/O writes settings (Microcontroller → Write register → General-purpose I/O output)
General-purpose I/O read settings (General-purpose I/O input → Read register → Microcontroller)
simultaneously. To use the general-purpose I/Os, pull up
setting, see Chapter 9.
and outputs it from PIO0, PIO1, PIO2, and PIO3. The input function saves the parallel data input to PIO0, PIO1, PIO2,
and PIO3 in internal registers and reads the contents of these registers with the microcontroller interface.
done with PIOEN. When PIOEN is "H", all the general-purpose I/Os become input pins. When PIOEN is "L", all the
general-purpose I/Os become output pins.
TXO [1]
TXO [2]
TLRCK
TDATA
Rn
Ln
R0
M
M
L1
Figure 11.4 Data Modulation of Single Channel
R0
L0
R1
LC89057W-VF4A-E
W
W
L2
R1
L1
R2
INT with a 10kΩ resistor. For further information about the
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M
M
L3
R2
L2
R3
W
W
L4
R3
L3
R4
M
M
L5
R4
L4
R5
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