參數(shù)資料
型號(hào): D6571E
廠商: Electronic Theatre Controls, Inc.
英文描述: Chip for an All-Digital Telephone Answering Machine with Flash Memory Interface
中文描述: 芯片的全數(shù)字電話應(yīng)答機(jī)與快閃記憶體介面
文件頁數(shù): 33/117頁
文件大?。?/td> 551K
代理商: D6571E
D6571E Data Sheet
DS6571E.2
DSP GROUP, INC., 3120 SCOTT BOULEVARD
SANTA CLARA, CA 95054 PH: 408 986-4300 FAX: 408 986-4490
31
When REC MODE = 11 and TONE GEN = 1 (Change Compression Rate)
Command (C2):
0001
1 1
1
RATE
(15-12)
(11-10)
(9)
(8 - 6)
NEW BIT RATE
= 000:
Low bit rate
= 001:
Middle bit rate
= 010:
High bit rate
LB DIS
= 1:
Disable loopback of input samples
= 0:
Enable loopback of input samples
GAP
= 0:
Gap Coding is disabled
= 1:
Activate Gap Coding
Change compression rate command allows switching between different compression rates. It allows also to enable/disable
gap coding codec loopback. This command
does not support switching from/to uncompressed speech recording.
Status (S2):
0001
REC
MODE
GEN
(15-12)
(11-10)
(9)
(8)
When TONE GEN = 0 and TAIL CUT FACTOR = non zero:
(S2)
MEM
FULL
(7)
In all other cases:
(S2):
MEM
FULL
(7)
MEM FULL
= 1:
Memory full condition has been reached.
VOX
= 1:
Speech frame was detected.
TONE
= 1:
Call Progress Tone was detected.
DTMF
} :
Code for Valid DTMF signal detected.
EXT TONE
}
NEW BIT
LB DIS
GAP
0 0 0 0
(5)
(4)
(3-0)
TONE
0
STATUS or TAIL CUT FACTOR
(7 - 0)
TAIL CUT FACTOR
(6-0)
VOX
EXT
TONE
(5)
TONE
DTMF
(6)
(4)
(3-0)
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