MAS3587F Micronas, MAS3587F Datasheet - Page 26

• Manufacturer Part Number: MAS3587F
• Description: MPEG Layer 3 Audio Encoder/Decoder
• Manufacturer: Micronas

MAS 3587F
3.3.1.3. Write Register (Code B
The controller writes the 20-bit value (d = d4,d3,d2, d1,d0) into the MAS 3587F register (r = r1,r0).
Example: Writing the value 81234
<DW 68 ba a8 12 34>
In Table 3–5 on page 32 the registers of interest with respect to the firmware are described in detail.
3.3.1.4. Read D0 Memory (Code C
The MAS 3587F has 2 memory areas of 2048 words called D0 and D1 memory. Both memory areas have different
read and write commands. All D0/D1 memory addresses are given in hexadecimal notation.
The Read D0 Memory command gives the controller access to all 20 bits of D0 memory cells of the MAS 3587F.
The telegram to read 3 words starting at location D0:100 is
<DW 68 c0 00 00 03 01 00>
<DW 69 <DR
26
1) send command
2) get memory value
S
S
S
DW
DW
DW
W
W
W
xx xd dd dd
xx xd dd dd xx xd dd
A
A
A
...repeat for n data values...
$68
$68
$69
x,x
x,x
W
W
W
A
A
hex
A
A
A
hex
x,d4
x,d4
)
hex
into the register with the number AA
S
d3,d2
n3,n2
a3,a2
b,r1
)
c,0
W
W
DR
dd>
A
A
A
A
A
A
A
W
d1,d0
r0,d4
n1,n0
a1,a0
d3,d2
d3,d2
0,0
A
W
W
W
W
W
A
A
A
A
A
A
A
d1,d0
d1,d0
P
P
W
W
hex
N
A
:
P
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