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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： | 25/83页 |
| 文件大小： | 734K |
| 代理商： | MAS3587F |
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ADVANCE INFORMATION
MAS 3587F
Micronas
25
3.3.1.1. Run and Freeze
The
Run
command causes the start of a program part at address
a
= (a3,a2,a1,a0). Since nibble a3 is also the com-
mand code (see Table 3
–
4), it is restricted to values between 0 and 3.
If the start address is 1000
hex
≤
a
< 3FFF
hex
and the respective RAM area has been configured as program RAM
(see Table 3
–
5 on page 32), the MAS 3587F continues execution with a custom program already downloaded to this
area.
Example 1: Start program execution at address 345
hex
:
<DW 68 03 45>
Example 2: Start execution of a downloaded code at address 3000
hex
:
<DW 68 30 00>
Freeze
is a special run command with start address 0. It suspends all normal program execution. The operating sys-
tem will enter an idle loop so that all registers and memory cells can be watched. This state is useful for operations
like downloading code or contents of memory cells because the internal program cannot overwrite these values.
This freezing will be required if alternative software is downloaded into the internal RAM of the MAS 3587F.
Freeze has the following I
2
C protocol:
<DW 68 00 00>
3.3.1.2. Read Register (Code A
hex
)
Some registers (
r
= r1,r0 in the figure above) are direct control inputs for various hardware blocks, others control the
internal program flow. In contrast to memory cells, registers cannot be accessed as a block but must always be
addressed individually.
Example:
Read the content of the PIO data register (C8
hex
):
<DW 68 ac 80>
<DW 69 <DR
xx xd dd dd
>
define register
and read
S
DW
A
W
$68
A
W
a3
,a2
A
a1,a0
A
W
P
S
DW
A
W
$68
A
W
S
DW
A
W
$68
A
W
a
,r1
A
r0,0
A
W
P
x,x
A
x,d4
A
W
d3,d2
A
d1,d0
N
W
P
2) get register value
S
DR
A
W
1) send command
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAS35X9F | 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS36 | 制造商:CUI 制造商全称:CUI INC 功能描述:Incremental Encoder |
| MAS36-256-N5 | 功能描述:ENCODER OPT 46MM ABS BIN 256PPR RoHS:是 类别:传感器，转换器 >> 编码器 系列:MAS36 产品目录绘图:OPE Series Panel Mount 标准包装:1 系列:OPE 编码器类型:光学 输出类型:正交（增量） 每转脉冲:256 电源电压:5VDC 触动器类型:1/4 英寸直径扁平端头 锁销:无 内置开关:无 安装类型:面板安装 方向:垂直 端接类型:端子引脚 回转寿命（最小循环):- 产品目录页面:2569 (CN2011-ZH PDF) 相关产品:OPEDAS0256-ND - ENCODER 256PPR DISK ASSY SHAFT 其它名称:365-1542 |
| MAS3690CC | 制造商:DYNEX 制造商全称:Dynex Semiconductor 功能描述:1553B Bus Controller/Remote Terminal |
| MAS3690CD | 制造商:DYNEX 制造商全称:Dynex Semiconductor 功能描述:1553B Bus Controller/Remote Terminal |
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