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參數(shù)資料
| 型號： | LC78626KE |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Compact Disc Player DSP(用于CD播放器的8位DSP) |
| 中文描述： | 光碟機的DSP（用于光盤播放器的8位數(shù)字信號處理器） |
| 文件頁數(shù)： | 20/34頁 |
| 文件大?。?/td> | 387K |
| 代理商： | LC78626KE |
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The Subcode Q Output Circuit
Pin 66: WRQ, Pin 62: RWC, Pin 65: SQOUT, Pin 64: CQCK, Pin 15 CS
It is possible to read the subcode Q from the SQOUT pin by inputting a clock into the CQCK pin. Of the 8-bit subcodes,
the “Q” signal is useful in accessing musical selections, in displays, etc. WRQ is only high when the CRC has been
passed and the address in the subcode Q format is “1.” (See Note 1.) When the microcontroller detects this high level, it
can transmit a CQCK signal to read the data from SQOUT in the order shown below. When the CQCK transmission
begins, data changes in the internal registers of the DSP are inhibited. Once the microcontroller has completed its read,
RWC temporarily goes high, enabling data updating. At this time, WRQ goes low. Because WRQ goes low after being
high for 11.2 ms, the CQCK input starts during the interval when WRQ is high. The data can be read beginning with the
least significant bit.
Note 1: This conditions is ignored if an address-free command is sent (corresponding to the CDV).
The items within the parentheses are for the read-in area.
*
The WRQ pin normally indicates the subcode Q standby; however, when in the track counter mode and when there is
an internal bake, it becomes a different monitor. (See the track count and internal brake items.)
*
This IC becomes active when the CS pin is low, and the subcode Q data is output from the SQOUT pin. When the CS
pin is high, the SQOUT pin enters a high impedance state.
No. 5995-20/34
LC78626KE
Code
COMMAND
RES = low
$09
ADDRESS FREE
$89
ADDRESS 1
G
G
CONT
ADR
TNO
INDEX (POINT)
MIN
SEC
FRAME
ZERO
AMIN (PMIN)
ASEC (PSEC)
AFRAME (PFRAME)
Sub Q data
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC78626 | 16-bit fixed point DSP with Flash |
| LC78626E | 16-bit fixed point DSP with Flash |
| LC78628 | 16-bit fixed point DSP with Flash |
| LC78628E | 16-bit fixed point DSP with Flash |
| LC78630 | 16-bit fixed point DSP with Flash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC78628 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP with Built-in HDCD Decoder |
| LC78628E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP with Built-in HDCD Decoder |
| LC7863 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:DIGITAL SIGNAL PROCESSOR FOR COMPACT DISC PLAYERS |
| LC78630 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disk Player DSP |
| LC78630E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disk Player DSP |
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