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MAS3504D Datasheet(PDF) 15 Page - Micronas

Part # MAS3504D
Description  G.729 Annex A Voice Codec
PDF  40 Pages
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Manufacturer  MICRONAS [Micronas]
Direct Link  http://www.micronas.com
Logo MICRONAS - Micronas

MAS3504D Datasheet(HTML) 15 Page - Micronas

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MAS 3504D
Micronas
15
3.3.5. Read Register
The MAS 3504D has an address space of 256 regis-
ters. Some of the registers (r = r1, r0 in the figure
above) are direct control inputs for various hardware
blocks, others do control the internal program flow. In
the next section, those registers that are of any interest
with respect to the G.729 codec are described in
detail.
Example: Read the content of the PIO data register
(C8hex):
<$3A><$68><$DC><$80>
<$3A><$69><$3B>
now read:
<d3,d2><d1,d0><x,x><x,d4>
3.3.6. Read D0 Memory
The ‘read D0 memory’ command is provided to get
information from memory cells of the MAS 3504D. It
gives the controller access to all memory cells of the
internal D0 memory. Direct access to memory cells is
an advanced feature of the DSP. It is intended for
users of the MASC software development kit.
3.3.7. Read D1 Memory
The ‘read D1 memory’ command is provided to get
information from memory cells of the MAS 3504D. It
gives the controller access to all memory cells of the
internal D1 memory.
1) send command
2) get register value
SDW
data_write
D,r1
r0,$0
SDW
data_read
S
DR
P
P
A
A
N
A
WA
A
A
WA
d3,d2
W
x,d4
WA
WA
A
d1,d0
W
x,x
A
r1, r0: register r
d3..d0: data value in r
x: don’t care
1) send command
2) get memory value
SDW
data_write
W
AAA
W
E,$0
0$,$0
SDW
data_read
WA
WA
d3,d2
S
A
DR
A
d1,d0
P
AW
n3,n2
n1,n0
AW
A
P
a3,a2
a1,a0
W
$0,$0
A
$0,d4
WA
N
d3,d2
A
d1,d0
W
$0,$0
A
$0,d4
....repeat for n data values....
W
W
A
A
A
A
n3..n0: number of words
a3..a0: start address in MASD memory
d4..d0: data value
1) send command
2) get memory value
SDW
data_write
WA
A
A
W
F,$0
$0,$0
SDW
data_read
WA
WA
d3,d2
S
A
DR
A
d1,d0
P
AW
n3,n2
n1,n0
AW
A
P
a3,a2
a1,a0
W
$0,$0
A
$0,d4
WA
N
d3,d2
A
d1,d0
W
$0,$0
A
$0,d4
....repeat for n data values....
W
W
A
A
A
A
n3..n0: number of words
a3..a0: start address in MASD memory
d4..d0: data value



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