LC72144M Datasheet, PDF (8/22 Pages) Sanyo Semicon Device – PLL Frequency Synthesizer

LC72144M
Serial Data Input and Output Methods
Data is input and output using the CCB (computer control bus) format, which is Sanyo's audio LSI serial bus format.
I/O mode
Address
B0 B1 B2 B3 A0 A1 A2 A3
Function
(1)
IN1
0
0
0
1
0
1
0
0
• Control data input mode (serial data input)
• 32 bits of data are input.
(2)
IN2
1
0
0
1
0
1
0
0
• Control data input mode (serial data input)
• 32 bits of data are input.
• Data output mode (serial data output)
(3)
OUT
0
1
0
1
0
1
0
0 • A number of bits equal to the number of clock cycles is
output.
The I/O mode is determined.
1. Serial data input (IN1/IN2)
Internal
data
2. Serial data output (OUT)
*1
*2
*2
Note: 1. Since the DO pin is an n-channel open drain output, the data value transition time will differ depending on
the value of the pull-up resistor and the printed circuit board capacitance values.
Note: 2. The DO pin is normally open.
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