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| 型號： | LC89057W-VF4-E |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, SQFP-48 |
| 文件頁數(shù)： | 28/61頁 |
| 文件大?。?/td> | 355K |
| 代理商： | LC89057W-VF4-E |
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LC89057W-VF4-E
No. 7202-34/61
10 Microcontroller Interface (INT, CL, CE, DI, DO)
10.1 Description of Microcontroller Interface
10.1.1 Interrupt output (INT)
Interrupts are output when a change has occurred in the PLL lock status or output data information.
Interrupt output is determined by the register for selecting the interrupt source, the INT pin that outputs that state
transition, and the registers that store the interrupt source data.
Normally INT outputs "L" upon occurrence of an interrupt while "H" is output. Following "L" output, it returns to
"H" as dictated by the INTOPF setting.
Select with INTOPF whether to hold the "L" pulse for a certain period and then clear it (to "H"), or clear it at the
same time that the output register is read.
The interrupt sources can be selected from among the following items. Multiple sources can be selected at the same
time with the contents of CCB address 0xE8 and command address 0x08. INT outputs the result of ORing(addition)
the selected interrupt sources.
INT output = (selected source 1) + (selected source 2) + ... + (selected source n)
Table 10.1. Interrupt Source Setting Contents
No.
Command Name
Description
1
ERROR
Output when RERR pin status has changed
2
INDET
Output when input data pin status has changed (Oscillation amplifier operation condition)
3
FSCHG
Output when input fs calculation result has changed. (Output amplifier condition)
4
CSRNW
Output when channel status data of first 48 bits has changed
5
UNPCM
Output when AUDIO pin status has changed
6
PCRNW
Output when burst preamble Pc has been updated
7
SLIPO
Output when data is read twice during slave setting and missing data is detected
8
EMPF
Output when emphasis information has changed
The set interrupt source contents are saved to output registers DO8 to DO15 of CCB address 0xEA. However, the
status of the RERR and AUDIO pins is output when the read registers for source items 1 and 5 are read. Except for
source items 1 and 5, other data are saved to the registers upon occurrence of an interrupt source.
If monitoring is performed even while the PLL is locked because the oscillation amplifier clock is used, the
oscillation amplifier must be set to the continuous operation mode for source items 2 and 3.
Clearing of INT at the same time that the output registers are read following the occurrence of an interrupt source is
done immediately after output register 0xEA is set.
The pulse width when the INT output following the occurrence of an interrupt source is set to the "L" pulse output
mode is between 1/2fs and 3/2fs for one interrupt source.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LC89058W | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:CMOS IC Digital Audio Interface Receiver |
| LC89058WA-E | 功能描述:音頻發(fā)送器、接收器、收發(fā)器 RoHS:否 制造商:Cirrus Logic 工作電源電壓:3.3 V, 5 V 電源電流:11.8 mA 通道數(shù)量:1 最大工作溫度:+ 70 C 接口類型:I2C, SPI 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-28 封裝: |
| LC89058W-E | 功能描述:音頻 DSP AUDIO INTERFACE RECEIVER RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| LC8905V | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Digital Audio Interface Receiver |
| LC89060 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:6-Bit Video D/A Converters |
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