參數(shù)資料
型號: 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): 97/117頁
文件大小: 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
93
Status (S2):
0 0 0 1
0 0
T
0 0
STATUS
(15 -12) (11 - 10) (9) (8 - 7) (6 - 0)
When T = 1 or T = 0 and STOP = 000000000: (S2):
VOX
EXT
TONE
TONE
DTMF
(6) (5) (4) (3 - 0)
VOX
=1: Speech frame was detected.
TONE
=1: Call progress tone was detected in last frame.
DTMF
} =
Code of valid DTMF or CAS signal detected.
EXT TONE }
When T = 0 and STOP = 000000001: (S2):
0 0 0 0 0 0 1
(6 - 0)
Command (C3):
0 0 0 1
0 0 0 0
NUMBER OF BYTES (for compressed data)
NUMBER OF WORDS (for
μ
/A-law PCM data)
(15 -12) (11 - 8) (7 - 0)
NUMBER OF BYTES - Indicates the number of bytes the Host expects to receive from the D6571E in the current
frame. This number should generally be set to the maximum number of bytes per frame (48).
NUMBER OF WORDS - Indicates the number of words the Host expects to receive from the D6571E in the
current frame. This number should generally be set to the maximum number of words per frame (120).
Status (S3):
0 0 0 1
0 0 0 0
TRANSFER NUMBER OF BYTES (for compressed data)
TRANSFER NUMBER OF WORDS (for
μ
/A-law PCM data)
(15 -12) (11 - 8) (7 - 0)
TRANSFER NUMBER OF BYTES - Indicates the actual number of bytes which the D6571E will transfer to the Host. This
number can be between 2 and 48.
TRANSFER NUMBER OF WORDS - Indicates the actual number of words that the D6571E will transfer to the Host. This
number is 120.
After the Host receives status S3, the actual data transfer begins. Shown below are the descriptions for TrueSpeech Data
Pump and
μ
-law/A-law PCM Data Pump.
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