參數(shù)資料
型號： HT82A850R
廠商： Holtek Semiconductor Inc.
英文描述： Audio MCU
中文描述： 音頻控制器
文件頁數(shù)： 17/41頁
文件大?。?/td> 296K
代理商： HT82A850R
HT82A850R
Rev. 1.10
17
July 25, 2007
The LVR includes the following specifications:
The low voltage (0.9V~V
LVR
) has to remain in this condition for a time greater than 1ms. If the low voltage state does
not exceed 1ms, the LVR will ignore it and will not perform a reset function.
The LVR uses an OR function with the external RESET signal to perform a device reset.
System Clock Selection
This register consists of system clock selection (SYSCLK)
Bit No.
Label
R/W
Reset
Functions
0~2
0
Reserved
5
f
SYS
16MHz
R/W
0
Defines the MCU system clock - sourced from the external OSC or
from the PLL output - 16MHz clock.
0: system clock sourced from OSC
1: system clock sourced from the PLL output - 16MHz
6
SYSCLK
R/W
0
UsedtospecifythesystemclockoscillatorfrequencyusedbyMCU.
Ifa6MHzcrystaloscillatororresonatorisused,thisbitshouldbeset
to 1 .
If a 12MHz crystal oscillator or resonator is used. this bit should be
cleared to 0 .
UCC (22H) Register
The speaker output volume and speaker mute/un-mute are controlled by the Digital Volume Control register. The range
of volume is set from 6 dB to 32 dB using software.
Speaker mute control:
MUTE= 0: Mute speaker output.
MUTE= 1: Normal.
Bit No.
Label
R/W
Power-on
Functions
0~6
USVC0~
USVC6
R/W
0
Volume Control Bit 0~Bit 6
7
MUTE
R/W
0
Mute control, low active
Digital Volume Control (1CH) Register
Result (dB)
USVC
Result (dB)
USVC
Result (dB)
USVC
Result (dB)
USVC
6
000_1100
2
111_1100
10
110_1100
24
101_1100
5.5
000_1011
2.5
111_1011
10.5
110_1011
25
101_1011
5
000_1010
3
111_1010
11
110_1010
26
101_1010
4.5
000_1001
3.5
111_1001
11.5
110_1001
27
101_1001
4
000_1000
4
111_1000
12
110_1000
28
101_1000
3.5
000_0111
4.5
111_0111
13
110_0111
29
101_0111
3
000_0110
5
111_0110
14
110_0110
30
101_0110
2.5
000_0101
5.5
111_0101
15
110_0101
31
101_0101
2
000_0100
6
111_0100
16
110_0100
32
101_0100
1.5
000_0011
6.5
111_0011
17
110_0011
1
000_0010
7
111_0010
18
110_0010
0.5
000_0001
7.5
111_0001
19
110_0001
0
000_0000
8
111_0000
20
110_0000
0.5
111_1111
8.5
110_1111
21
101_1111
1
111_1110
9
110_1110
22
101_1110
1.5
111_1101
9.5
110_1101
23
101_1101
Speaker Volume Control Table
相關(guān)PDF資料
PDF描述
HT82A851R USB Audio MCU
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HT82A851R 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:USB Audio MCU
HT82B40A 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O MCU with USB Interface
HT82B40R 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O MCU with USB Interface
HT82B40R_11 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O MCU with USB Interface
HT82B42R 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:I/O MCU with USB Interface
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