MAS3587F Micronas, MAS3587F Datasheet - Page 42
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MAS3587F
Manufacturer Part Number
MAS3587F
Description
MPEG Layer 3 Audio Encoder/Decoder
Manufacturer
Micronas
Datasheet
1.MAS3587F.pdf
(83 pages)
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MAS 3587F
3.4. Audio Codec Access Protocol
The MAS 3587F has 16-bit wide registers for the control of the audio codec. These registers are accessed via the
I
3.4.1. Write Codec Register
The controller writes the 16-bit value (d = d3,d2,d1,d0) into the MAS 3587F codec register (r = r3,r2,r1,r0). A list of
registers is given in Table 3–12.
Example: Writing the value 1234
<DW 6c 00 1b 12 34>
3.4.2. Read Codec Register
Reading the codec registers also needs a set-up for the register address and an additional start condition during the
actual read cycle. A list of registers is given in Table 3–13.
42
1) send command
2) get register value
2
S
S
S
C subaddresses codec_write (6C
DW
DW
DW
W
W
W
A
A
A
$6C
$6C
$6D
A
A
A
hex
S
d3,d2
d3,d2
r3,r2
r3,r2
hex
into the codec register with the number 00 1B
) and codec_read (6D
DR
A
A
A
A
W
d1,d0
d1,d0
r1,r0
r1,r0
A
A
A
A
N
P
P
P
hex
).
hex
:
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