參數(shù)資料
型號(hào): NSAM266SA
廠(chǎng)商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): 數(shù)字信號(hào)處理
英文描述: 4 Mbit Uniform Sector, Serial Flash Memory
中文描述: 8-BIT, MIXED DSP
文件頁(yè)數(shù): 39/52頁(yè)
文件大小: 571K
代理商: NSAM266SA
2.0 Software
(Continued)
Example
P
Byte sequence:
Microcontroller
03
CompactSPEECH 03
Description:
Play the current message.
PA
Pause
Suspends the execution of the current R, P, GT, SO, SW,
SS or SAS command. The PA command does not change
the state of the CompactSPEECH; execution can be re-
sumed with the RES command.
Note:
DTMF and tone detectors remain active during Pause.
Example
PA
Byte sequence:
Microcontroller
1C
CompactSPEECH 1C
Description:
Suspend playback of current message.
PDM
Go To Power-down Mode
Switches the CompactSPEECH to power-down mode (see
Section 1.3.3 for details). Sending any command while in
power-down mode resets the CompactSPEECH detectors,
and returns the CompactSPEECH to normal operation
mode.
Example
PDM
Byte sequence:
Microcontroller
1A
CompactSPEECH 1A
Description:
Put the CompactSPEECH in power-down
mode.
R
Recordtag
Records a new message with message tag tag. The
CompactSPEECH state changes to
RECORD
. The R com-
mand continues execution until stopped by the S command.
Recording can be paused with the PA command, and can
be resumed later with the RES command.
If
EVDMEMFULL is set in the status word.
Note:
A time-and-day stamp is automatically attached to each message.
Before using the R command for the first time, use the SETD com-
mand. Failure to do so results in undefined values for the time-and-
day stamp.
the
memory
becomes
full,
recording
stops
and
Example
R 000E
Byte sequence:
Microcontroller
0C 00 0E
CompactSPEECH 0C 00 0E
Description:
Record a new ICM in mailbox Number 6
in a system where the message tag is
encoded as described in the example of
the DMS command.
RDET
Reset DetectorsdetectorsDresetDmask
Resets the CompactSPEECH tone and energy detectors
according to the value of the detectorsDresetDmask pa-
rameter. A bit set to 1 in the mask, resets the corresponding
detector. A bit cleared to 0 is ignored.
The 1-byte detectorsDresetDmask is encoded as follows:
Bit 0
Reset the busy and dial tone detectors.
Bits 1–4
Reserved. Must be cleared to 0.
Bit 5
Reset the no energy (VOX) detector.
Bit 6
Reset the DTMF detector.
Bit 7
Reserved. Must be cleared to 0.
Example
RDET 20
Byte sequence:
Microcontroller
2C 20
CompactSPEECH 2C 20
Description:
Reset the VOX detector.
RES
Resume
Resumes the activity that was suspended by the PA, SF or
SB commands.
Example
RES
Byte sequence:
Microcontroller
1D
CompactSPEECH 1D
Description:
Resume playback which was suspended
by either the PA, SF or SB command.
RRAM
Read Memory
Returns 32 bytes from the current message. The first RRAM
command returns the first 32 bytes of the current message.
Subsequent RRAM commands return the next following
32 bytes from the message until the end of the message.
The command sequence can be stopped by the S com-
mand.
Note 1:
Trying to read beyond the end of the message sets the EVDNOR-
MALDEND event, and the CompactSPEECH switches to the IDLE
state. In this case, the return value is undefined and should be ig-
nored.
Note 2:
When using WRAM and RRAM to write and read messages of arbi-
trary length, the microcontroller is responsible for marking the actual
end of the message (e.g., with a delimiter string).
The next RRAM command after the end of the message is reached,
starts again from the beginning of the current message.
Note 3:
If the current message is undefined, ERRDINVALID is reported.
Example
RMEMData
Byte sequence:
Microcontroller
18 AA AA
. . .
CompactSPEECH 18
32 bytes of data
Description:
Read 32 bytes from the
current message memory.
S
Stop
Stops execution of the current command and switches the
CompactSpeech to the
IDLE
state. S may be used to stop
the execution of WRAM, RRAM and all asynchronous com-
mands.
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39
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