LC72121MA
Procedures for Input and Output of Serial Data
This product uses the CCB (Computer Control Bus), which is Sanyo’s audio product serial bus format, for data input
and output. This product adopts an 8-bit address CCB format.
I/O mode
Address
B0 B1 B2 B3 A0 A1 A2 A3
Function
• Control data input (serial data input) mode
• 24 bits of data are input.
[1]
IN1(82)
00010100
• See the “DI Control Data (serial data input)” section for details on the
content of the input data.
• Control data input (serial data input) mode
• 24 bits of data are input.
[2]
IN2(92)
10010100
• See the “DI Control Data (serial data input)” section for details on the
content of the input data.
• Data output (serial data output) mode
• The number of bits output is equal to the number of clock cycles.
[3] OUT(A2) 0 1 0 1 0 1 0 0
• See the “DO output Data (serial data output)” section for details on the
content of the output data.
I/O mode determined
CE
(1)
CL
(2)
DI
(1)
DO
(2)
B0 B1 B2 B3 A0 A1 A2 A3
(1) CL:Normally high
(2) CL:Normally low
First data IN1/2
First data OUT
First data OUT
No.A2009-8/24