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參數(shù)資料
| 型號(hào)： | APR6016 |
| 廠商： | Aplus Integrated Circuits Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:43; Series:MS27656; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No |
| 中文描述： | 錄音 |
| 文件頁數(shù)： | 10/24頁 |
| 文件大?。?/td> | 1529K |
| 代理商： | APR6016 |
Preliminary
APR6016 Data Sheet
Page 10
Voice Recording & Playback Device
Revision 1.0
Writing Digital Data
Digital data is written into the device using the
DIG_WRITE
command. No mixing of analog data and digital data within a
sector is possible. Sectors 0 through 9 are tested and guar-
anteed for digital storage. Other sectors, with the exception of
sector 1279, can store data but have not been tested, and
are thus not guaranteed to provide 100% good bits. This can
be managed with error correction or forward check-before-
store methods. Issuing a
DIG_ERASE
command on sector
1279 will cause data throughout all sectors to be lost.
A sector must be erased, using the
DIG_ERASE
command,
before digital data can be written to it. This requirement is
necessary whether analog data or digital data was previously
stored in the sector. A sector should not be erased more than
once between analog or digital write operations. Executing
multiple erase operations on a sector will permanently dam-
age the sector. A sector can be reallocated to either analog
storage or digital storage at any time.
The process of storing digital data begins by sending a
DIG_WRITE
command. The
DIG_WRITE
command is fol-
lowed immediately by four buffer bits. These bits will not be
stored in the array and must be considered don’t care bits.
Immediately following the four buffer bits should be the data
that you wish to store. All 3004 bits must be stored. Four
additional buffer bits must be clocked into the device follow-
ing the stored data. These bits will not be stored in the array
and must be considered don’t care bits. Ending a digital write
command early will permanently damage the sector.
The DO pin will clock out the normal 20 bit CDS followed by
five don’t care bits, a copy of the 3004 data bits, and finally
three don’t care bits.
Figure 11 shows a timing diagram which describes the digital
storage process. All timing with the exception of T
pSCLK
should adhere to the specifications given in Figure 4 and Fig-
ure 7. The T
pSCLK
specification is replaced by the DT
pSCLK
when storing digital data. The /BUSY pin indicates when a
DIG_WRITE
is taking place.
Note: The DIG_ERASE command should not be used before
storing analog data. The device will perform its own internal
erase before analog storage.
Figure 11 does not show the DIG_ERASE command which
must be executed on a sector before digital data can be
stored.
Figure 11 Writing Digital Data
/CS
SCLK
D I
DO
CDS
Copy of the input data (delayed one clock cycle)
Four Don’t Care Bits
Total 3032 clock cycles
X
X
X
X
X
X
X
X
DIG_WRITECOMMAND
3004 bits of data to be stored
X X
X
X
X
X
X
X
/BUSY
相關(guān)PDF資料 |
PDF描述 |
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| APR9301-V2-1 | Circular Connector; No. of Contacts:43; Series:MS27656; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No |
| APR9301-V2 | Circular Connector; No. of Contacts:43; Series:MS27656; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No |
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