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: 37/83页
文件大小: 734K
代理商: MAS3587F
ADVANCE INFORMATION
MAS 3587F
Micronas
37
D0:7f3
Oscillator Frequency
(reset = 18432
dec
)
bit[19:0]
oscillator frequency in kHz
All
In order to achieve a correct internal operating frequency of the DSP, the nom-
inal crystal frequency has to be deposited into this memory cell.
Changes at this memory address must be validated by setting bit 0 of D0:7f1.
OfreqControl
D0:7f4
Output Clock Configuration
(pin CLKO) (reset = 80000
hex
)
bit[19]
CLKO configuration
0
output clock signal at CLKO
1 (reset)
CLKO is tristate
All
The CLKO output pin of the MAS 3587F can be disabled via bit [19].
bit[18]
Reserved, must be set to zero
bit[17]
Additional division by 2 if scaler is on (bit[8] cleared)
0 (reset)
oversampling factor 512/768
1
oversampling factor 256/384
bit[16:9]
Reserved, must be set to zero
bit[8]
Output clock scaler
0 (reset)
set output clock according to audio sample rate
(see Table 2
1)
output clock fixed at 24.576 or 22.5792 MHz
1
For a list of output frequencies at pin CLKO please refer to Table 2
1.
bit[7:0]
reserved, must be set to zero
Changes at this memory address must be validated by setting bit[0] of D0:7f1.
OutClkConfig
D0:7f8
S/PDIF
1)
channel status bits category code setting
(reset = 8004
hex
)
All
SpdOutBits
D0:7f9
Soft Mute
(reset = 0
hex
)
bit[19:0]
Decoder
0 (reset)
1
mute off
mute on
SoftMute
D0:7fc
Volume output control: left
left gain
(reset = 80000
hex
)
Decoder
out_LL
D0:7fd
Volume output control: left
right gain
(reset = 0
hex
)
Decoder
out_LR
D0:7fe
Volume output control: right
left gain
(reset = 0
hex
)
Decoder
out_RL
D0:7ff
Volume control: right
right gain
(reset = 80000
hex
)
Decoder
out_RR
1)
IEC 958 Amendment1,
Digital Audio Interface
Table 3
7:
D0 Control Memory Cells
Memory
Address
(hex)
Function
Name
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