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): 108/117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
104
6. DATA DECOMPRESSION (From Host to Host)
Command (C1):
1 1 1 1
1 1
0 0 0 0 0 0 0 0 0 0
(15 - 12) (11 - 10) (9 - 0)
Status (S1):
1 1 1 1
1 1
0 0 0 0 0 0 0 0 0 0
(15 - 12) (11 - 10) (9 - 0)
Command (C2):
0 0 1 0
0 0 0 0
NUMBER OF BYTES
(15 - 12) (11 - 8) (7 - 0)
NUMBER OF BYTES - Indicates the number of bytes that the Host will transmit to the D6571E (should be 48).
Status (S2):
0 0 1 0
0
IND
0 0
TRANSFER NUMBER OF BYTES
(15 - 12) (11) (10) (9 - 8) (7 - 0)
TRANSFER NUMBER OF BYTES - Indicates the number of bytes that the D6571E will accept from the Host
IND (Insufficient Data) - Indicates that the number of bytes that the Host will transmit is less bytes than necessary for
decompression. When there is an inadequate number of bytes, the D6571E will respond with TRANSFER NUMBER OF
BYTES equal to 00000000 and set IND equal to ‘1’. As a result, the byte transfer phase will be skipped.
If IND was not set to ‘1’ in S2, then the Host begins data transfer to the D6571E. The Host sends the byte of data in the
high byte of the Data Transfer command. The D6571E echoes the received data in the high byte of the status word (Data
Transfer status). During the data transfer phase, the HI\LO pin (pin 4) should be set to high.
Data Transfer Command:
(DC1 . . . DC_Transfer _Number_of_Bytes)
DATA BYTE
(15 - 8)
Data Transfer Status:
(DS1 . . . DS_Transfer_Number_of_Bytes)
ECHO OF DATA BYTE
(15 - 8)
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