参数资料
型号: MAS3587F
厂商: Electronic Theatre Controls, Inc.
元件分类: 通用总线功能
英文描述: MPEG Layer 3 Audio Encoder/Decoder
中文描述: MPEG层3音频编码器/解码器
文件页数: 26/83页
文件大小: 734K
代理商: MAS3587F
MAS 3587F
ADVANCE INFORMATION
26
Micronas
3.3.1.3. Write Register (Code B
hex
)
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
hex
into the register with the number AA
hex
:
<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
hex
)
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
xx xd dd dd
xx xd dd dd
xx xd dd dd
>
S
DW
A
W
$68
A
b
,r1
A
r0,d4
A
W
d3,d2
A
d1,d0
A
W
P
W
S
DW
A
W
$69
A
W
S
DW
A
W
$68
A
W
c
,0
A
0,0
A
W
x,x
A
x,d4
A
W
d3,d2
A
d1,d0
A
W
2) get memory value
S
DR
A
W
1) send command
n3,n2
A
n1,n0
A
W
a3,a2
A
a1,a0
A
W
P
x,x
A
x,d4
A
W
d3,d2
A
d1,d0
N
W
P
...repeat for n data values...
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