參數(shù)資料
型號(hào): ADAU1446YSTZ-3A-RL
廠(chǎng)商: Analog Devices Inc
文件頁(yè)數(shù): 58/92頁(yè)
文件大?。?/td> 0K
描述: IC SIGMADSP 175MHZ 100LQFP
標(biāo)準(zhǔn)包裝: 1,000
系列: SigmaDSP®
類(lèi)型: 音頻處理器
應(yīng)用: 車(chē)載音頻
安裝類(lèi)型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(16x16)
包裝: 帶卷 (TR)
ADAU1445/ADAU1446
Rev. A | Page 61 of 92
Watchdog Modes and Settings
Watchdog Registers (Address 0xE210 to Address 0xE212)
Table 42. Register Details of Watchdog Registers
Address
Register
Function
Default
Decimal
Hex
57872
E210
Watchdog enable
1-bit enable register for watchdog timer
0
57873
E211
Watchdog Value 1
16 MSBs of the watchdog maximum count value
0
57874
E212
Watchdog Value 2
16 LSBs of the watchdog maximum count value
0
A program counter watchdog is used when the core performs
block processing (which can span several samples). The
watchdog flags an error if the program counter reaches the 32-
bit value set in the watchdog value registers. This value consists
of two consecutive 16-bit register locations. The error flag sends
a high signal to one of the multipurpose pins. The watchdog
function must be enabled by setting the single-bit register at
Location 57872 high.
The register configuration for the watchdog counter is as
follows:
Watchdog enable is a 1-bit enable.
Watchdog Value 1 is the 16 MSBs of the watchdog
maximum count value.
Watchdog Value 2 is the 16 LSBs of the watchdog
maximum count value.
Table 43. Bit Descriptions of Register 0xE210
Bit Position
Description
Default
[15:1]
Reserved
[0]
Watchdog enable
0
Watchdog Error Sticky Register (Address 0xE226)
Table 44. Bit Descriptions of Register 0xE226
Bit Position
Description
Default
[15:1]
Reserved
[0]
Watchdog error sticky (read only)
0
This single-bit watchdog error flag goes high when an error occurs.
It can optionally be sent to an MP pin, as described in the
Address 0xE20F) section. For example, the error flag can
connect to an interrupt pin on a microcontroller in the system.
It resets to 0 when the watchdog enable is reset to 0.
CRC and Watchdog Mute Register (Address 0xE227)
Table 45. Bit Descriptions of Register 0xE227
Bit
Position
Description
Default
[15:2]
Reserved.
[1]
A CRC error mutes the core automatically.
0
[0]
A watchdog error mutes the core
automatically.
0
This 2-bit register causes a CRC or watchdog error to
automatically mute the core. The default value is off.
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