lc89052t Sanyo Semiconductor Corporation, lc89052t Datasheet - Page 28

• Manufacturer Part Number: lc89052t
• Description: Digital Audio Interface Receiver
• Manufacturer: Sanyo Semiconductor Corporation

9.2 CCB Addresses
9.3 Data Write Procedure
9.4 Data Read Procedure
Function settings data 1
Function settings data 2
Function settings data 3
Interrupt data output
Fs value, CS data output
Sub-code Q data output
Setting various functions, and reading and writing data must be carried out though the microcontroller interface.
The data through the microcontroller interface conforms to the Sanyo’s original serial bus format (CCB). However,
Data must be input or output after the CCB address is input. See the I/O timing chart for details of the data input and
The bit length of data input is 16 bits.
After inputting one of the CCB addresses data 0xE8 to 0xEA, set CE to the high level.
Input data is taken in on the rising edge of CL.
The bits marked "0" in the table are reserved bits. 0 (zero) must be input to these bits.
Read data is output from DO. DO goes to the high-impedance state when CE is low, and output starts on the CE rising
The number of data bits read differs with the data to be read. Interrupt data (0xEB) is 8 bits long, the channel status
the three-state is employed instead of open-drain as the data output type.
output timing.
edge that follows the output setup with the CCB address. After that, the DO pin is returned to the high-impedance
state when CE is set low.
related data (0xEC) is 56 bits long, and the sub-code Q data (0xED) is 88 bits long. However, it is not necessary to
read out all data bits. During readout, an application can stop providing CL input and set CE low and still have
acquired the data read up to that point. For example, when reading the sub-code Q data, if the CRC flags are read and
the data is found no good, there is no need to read the subsequent data.
Register content
Table 9.3 Register I/O Content and CCB Addresses
Write
Write
Write
Read
Read
Read
R/W
CCB address
0xEA
0xEB
0xEC
0xED
0xE8
0xE9
LC89052T
B0
0
1
0
1
0
1
B1
0
0
1
1
0
0
B2
0
0
0
1
1
0
B3
1
1
1
1
1
1
A0
0
0
0
0
0
0
A1
1
1
1
1
1
1
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A2
1
1
1
1
1
1
A3
1
1
1
1
1
1