参数资料
型号: ADAU1401YSTZ-RL
厂商: Analog Devices Inc
文件页数: 29/52页
文件大小: 0K
描述: IC AUDIO PROC 28/56BIT 48LQFP
标准包装: 2,000
系列: SigmaDSP®
类型: 音频处理器
应用: 监控器,电视
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 带卷 (TR)
Data Sheet
ADAU1401
Rev. C | Page 35 of 52
CONTROL REGISTER DETAILS
2048 TO 2055 (0x0800 TO 0x0807)—INTERFACE
REGISTERS
The interface registers are used in self-boot mode to save
parameters that need to be written to the external EEPROM.
The ADAU1401 then recalls these parameters from the
EEPROM after the next reset or power-up. Therefore, system
parameters such as volume and EQ settings can be saved during
power-down and recalled the next time the system is turned on.
There are eight 32-bit interface registers, which allow eight 28-bit
(plus zero-padding) parameters to be saved. The parameters to
be saved in these registers are selected in the graphical
programming tools. These registers are updated with their
corresponding parameter RAM data once per sample period.
An edge, which can be set to be either rising or falling, triggers
the ADAU1401 to write the current contents of the interface
registers to the EEPROM. See the Self-Boot section for details.
The user can write directly to the interface registers after the
interface registers control port write mode (IFCW) in the DSP core
control register has been set. In this mode, the data in the registers
is written from the control port, not from the DSP core.
Table 33. Interface Register Bit Map
D31
D30
D29
D28
D27
D26
D25
D24
D23
D22
D21
D20
D19
D18
D17
D16
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default
0
IF27
IF26
IF25
IF24
IF23
IF22
IF21
IF20
IF19
IF18
IF17
IF16
0x0000
IF15
IF14
IF13
IF12
IF11
IF10
IF09
IF08
IF07
IF06
IF05
IF04
IF03
IF02
IF01
IF00
0x0000
Table 34.
Bit Name
Description
IF[27:0]
Interface register 28-bit parameter
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