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參數(shù)資料
| 型號： | NSAM265SFA |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | CompactSPEECH Digital Speech Processors |
| 中文描述： | CompactSPEECH數(shù)字語音處理器 |
| 文件頁數(shù)： | 23/58頁 |
| 文件大?。?/td> | 712K |
| 代理商： | NSAM265SFA |
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3.0 Command Set
(Continued)
CMT
NSAM265SR
&
Cut Message TailtimeDlength
NSAM265SF
&
Cut timeDlength units, each of 10 ms duration, off the end
of the current message. The maximum value of timeD
length is 6550. Cut-time accuracy is 0.14 seconds.
Note:
If timeDlength is longer than or equal to the total duration of the
message the EVDNORMALDEND event is set in the status word
and the message becomes empty (i.e., message length is 0), but is
not deleted. Use the DM (Delete Message) or DMS (Delete Mes-
sages) command to delete the message.
CVOC
NSAM265SR
&
Check Vocabulary
NSAM265SF
&
Checks the correctness of the current selected vocabulary.
The purpose of this command is to check the correctness of
IVS vocabularies which were pre-programmed to a FLASH
device.
If the vocabulary data is OK or if the current vocabulary is
the internal vocabulary, the return value is 1. Otherwise the
return value is 0.
DM
NSAM265SR
&
Delete Message
NSAM265SF
&
Deletes the current message. Deleting a message clears its
message tag.
Deleting the current message does not cause a different
message to become current. The current message is unde-
fined. If, for example, you issue the GTM command to skip
to the next message, the first message that is newer than
the just deleted message will be selected as the current
message.
NSAM265SR
The memory space released by the deleted message is im-
mediately available for recording new messages.
NSAM265SF
The memory space released by the deleted message is po-
tentially available (see the GMS command) but, in practice,
is available only after the FR command has been executed.
DMS
NSAM265SR
&
Delete MessagestagDref tagDmask
NSAM265SF
&
Deletes all messages whose message tags match thetagD
ref parameter. Only bits set intagDmask are compared i.e.,
a match is considered successful if:
message tag andtagDmask
e
tagDref andtagDmask
where and is a bitwise AND operation.
After the command completes execution, the current mes-
sage is undefined. Use the GTM to select a different mes-
sage to be the current message.
NSAM265SR
The memory space released by the deleted message is im-
mediately available for recording new messages.
NSAM265SF
The memory space released by the deleted message is po-
tentially available (see the GMS command) but, in practice,
is available only after the FR command has been executed.
FR
Free Memory
NSAM265SR
V
NSAM265SF
&
Frees memory space for recording. When a message is de-
leted with a DM or DMS command, the memory space
which was occupied by the deleted message is marked DE-
LETED but is not available for recording new messages.
The process performed by the FR command makes this
memory space available for recording.
When execution of the FR command starts, the state of the
CompactSPEECH changes to MEMORYDFREE. When the
process is completed the CompactSPEECH sets the EVD
NORMALDEND event, and activates the MWRQST signal.
The process can be stopped with the S command. The typi-
cal execution time of an S command following an FR com-
mand is 1 second. Since the process involves erasure of
AFLASH blocks, the maximum execution time of an S com-
mand following an FR command is according to the
AFLASH device specification (i.e., 3 seconds
a
single
block erasure time).
Possible schemes for using FR in a DAM environment:
#
When the CompactSPEECH is idle for a few seconds
after a sequence of one or more DM or DMS commands.
A typical DAM session involves listening to ICMs and
deleting some of them. The microcontroller assumes that
such a session has been completed if the Compact-
SPEECH is idle for a preset time, and should then issue
the FR command.
#
During initialization (after the INIT command has been
executed). We recommend sending a GMS command to
see if there is sufficient potential additional recording
time to justify sending the FR command.
We recommend suspending FR execution (with the S com-
mand) if a ring is detected, to minimize the time taken by the
CompactSPEECH to prepare for ICM recording.
Note:
After FR execution has been completed, the current message is un-
defined. Use the GTM command to select the current message.
GCFG
NSAM265SR
&
Get Configuration Value
NSAM265SF
&
This command returns a sequence of two bytes with the
following information:
Bits 0–7
Magic number which specifies the Compact-
SPEECH firmware version
Bits 8–9
Memory type
00: ARAM
01: AFLASH
10, 11: Reserved
The command should be used together with the CFG and
INIT commands during CompactSPEECH initialization. See
the CFG command for more details and an example of a
typical initialization sequence.
GEW
NSAM265SR
&
Get Error Word
NSAM265SF
&
Returns the 2-byte error word.
The Error Word
The 16-bit error word indicates errors that occurred during
execution of the last command. If an error is detected, the
command is not processed; the EVDERROR bit in the
status word is set to 1, and the MWRQST signal is activated
(set to low).
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NSAM265SRA | CompactSPEECH Digital Speech Processors |
| NSAM266SVLJ | 4 Mbit Uniform Sector, Serial Flash Memory |
| NSAM266SA | 4 Mbit Uniform Sector, Serial Flash Memory |
| NSAM266SAA | 4 Mbit Uniform Sector, Serial Flash Memory |
| NSB8 | BASIC interpreter for Z80 family |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NSAM265SFAV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Solid-State Recorder |
| NSAM265SFAVLJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Solid-State Recorder |
| NSAM265SR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| NSAM265SRA | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:CompactSPEECH Digital Speech Processors |
| NSAM265SRAV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Solid-State Recorder |
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