參數(shù)資料
型號(hào)： LC78628
廠商： Sanyo Electric Co.,Ltd.
元件分類： 數(shù)字信號(hào)處理
英文描述： 16-bit fixed point DSP with Flash
中文描述： 具有閃存的 16 位定點(diǎn) DSP
文件頁(yè)數(shù)： 20/40頁(yè)
文件大?。?/td> 241K
代理商： LC78628
No. 6329-20/40
LC78628E
Code
Command
RES = low
$09
ADDRESS FREE
$89
ADRESS = low
G
G
Subcode Q can be read from the SQOUT pin by applying a clock to the CQCK pin.
Of the eight bits in the subcode, the Q signal is used for song (track) access and display. WRQ will be high only if the data passed the CRC error check and
the subcode Q format internal address is 1
*
. The control microprocessor can read out data from SQOUT in the order shown below by detecting this high
level and applying CQCK. When CQCK is applied the DSP disables register update internally. The microprocessor gives update permission by setting RWC
high briefly after reading has completed. This causes WRQ to fall to low at this time. Since WRQ falls to low 11.2 ms after going high, CQCK must be applied
during the WRQ high period. Note that data is read out LSB first.
Note:
*
These conditions will be ignored if an address free command is sent. This is provided to handle CD-ROM applications.
9. Subcode Q output circuit — Pin 63: WRQ, pin 64: RWC, pin 65: SQOUT, pin 67: CQCK, pin 75: CS
ADR
CONT
AFRAME
80 bits
WRQ
CQCK
SQOUT
RWC
SUBQ data
A12818
CONT
TNO
INDEX (POINT)
MIN
SEC
Note: Items in parentheses
refer to the read-in area.
FRAME
ZERO
AMIN (PMIN)
ASEC (PSEC)
AFRAME (PFRAME)
ADR
8 bits
Notes: 1. Normally, the WRQ pin indicates the subcode Q standby state. However, it is used for a different monitoring purpose in track check mode and
during internal braking. (See the items on track counting and internal braking for details.)
2. The LC78628E becomes active when the CS pin is low, and subcode Q data is output from the SQOUT pin. When the CS pin is high, the SQOUT
pin goes to the high-impedance state.
相關(guān)PDF資料
PDF描述
LC78628E 16-bit fixed point DSP with Flash
LC78630 16-bit fixed point DSP with Flash
LC78630E 16-bit fixed point DSP with Flash
LC78631 16-bit fixed point DSP with Flash
LC78631E 16-bit fixed point DSP with Flash
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
LC78631 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disk Player DSP
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