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參數資料
| 型號： | LC89057W-VF4 |
| 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： | 28/61頁 |
| 文件大小： | 570K |
| 代理商： | LC89057W-VF4 |
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LC89057W-VF4
No.7202-34/61
11. Microcontroller Interface (
_______
INT, CL, CE, DI, DO)
11.1 Description of Microcontroller Interface
11.1.1 Interrupt output (
______
INT)
Interrupts are output when a change has occurred in the PLL lock status or output data information.
Interrupt output consists of 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"
according to the INTOPF setting.
INTOPF determines whether to hold the "L" pulse for a certain period and then clear it ("H"), or to clear it at a time
when the output register is read.
The interrupt sources can be selected 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 OR calculation result of the selected
interrupt sources.
______
INT output = (selected source 1) + (selected source 2) + ... + (selected source n)
Table 11.1 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 (subject to oscillation amplifier operation condition)
3
FSCHG
Output when input fs calculation result has changed (subject to oscillation amplifier condition)
4
CSRNW
Output when channel status data of first 48 bits have updated
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 contents of set interrupt source are saved in output registers DO8 to DO15 of CCB address 0xEA, when the
source occurs. However, for the read registers for source items 1 and 5, the each status of the RERR and
____________
AUDIO pins
are output at the time of reading. Other data except for source items 1 and 5 are saved in the registers upon occurrence
of an interrupt source.
Concerning source items 2 and 3, the oscillation amplifier clock is used. Therefore, if the status is monitored even
while the PLL is locked, the oscillation amplifier must be set to the continuous operation mode.
Clearing
______
INT at the same time of readout of an output register is carried out immediately after the output register
0xEA is set.
The pulse width of the setting in which the
______
INT output following the occurrence of an interrupt source is set to the "L"
pulse output mode is somewhere between 1/2fs and 3/2fs for one interrupt source.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LC89057W-VF4AD-E | 制造商:ON Semiconductor 功能描述: |
| LC89057W-VF4A-E | 功能描述:音頻發送器、接收器、收發器 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: |
| LC89057W-VF4A-TBM-E | 制造商:ON Semiconductor 功能描述: 制造商:ON Semiconductor 功能描述:AUDIO I/F RECEIVER |
| 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:音頻發送器、接收器、收發器 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: |
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