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參數(shù)資料
| 型號(hào)： | AK7714 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:8; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-8 RoHS Compliant: No |
| 中文描述： | 20位音頻編解碼器與DSP和內(nèi)存延遲 |
| 文件頁數(shù)： | 29/48頁 |
| 文件大?。?/td> | 516K |
| 代理商： | AK7714 |
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[ASAHI KASEI]
[AK7714]
M0018-E-00
‘98/07
- 29 -
(6) Interface with microcomputer
Interface with the microcomputer is provided by 7 control signals: CS (Chip Select Bar), WRQ (Write ReQuest Bar),
SCLK (Serial data input CLocK), SI (Serial data Input), SO (Serial data Output), RDY (ReaDY) and DRDY (Data
ReaDY).
In the AK7714, two types of operations are provided; writing and reading during the reset phase (namely, system reset)
and those during the run phase. During the reset phase, data can be written to the control register, program
RAM,coefficient RAM, offset RAM, and external conditional jump code, and data can be read from the program
RAM,coefficient RAM and offset RAM. During the run phase, data can be written to the coefficient RAM,offset RAM and
external conditional jump code, and data on the DBUS (data bus) can be read from SO.
CS is used also for SO control in addition to the chip selection. When only one AK7714 is used without SO, CS = "L" is
allowed at all times.
If there is no communication with the microcomputer, set SCLK to "H" and SI to "L" for use.
Data is serially input and output with the MSB first. The following 8-bit command data is sent first, and the specified
work is performed.
Command code list
Contents of command
Conditions for use:
Code (C7C6C5C4C3C2C1C0)
Program RAM write
External conditional JMP code write [JCON]
Coefficient RAM write
Coefficient RAM write
Offset RAM write
Offset RAM write
CRAM/OFFRAM rewrite preparation[BNBW] during run phase:
Control register write
Program RAM read
Program CRAM read
Program OFRAM read
[RSPW] During reset phase:
both reset and run phases: Code (11000100)
[RSCW] during reset phase:
[RNCW] during run phase:
[RSOW] during reset phase:
[RNOW] during run phase:
Code (11000000)
Code (10100000)
Code (10100100)
Code (10010000)
Code (10010100)
Code (10001000)
Code (00000110)
Code (11000011)
Code (10100001)
Code (10010001)
[CONW] during reset phase:
during reset phase:
during reset phase:
during reset phase:
NOTE: Do not send codes other than the above command codes.
Otherwise, an operation error may occur.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK7714VT | Circular Connector; No. of Contacts:8; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-8 RoHS Compliant: No |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK7714VT | 制造商:AKM 制造商全稱:AKM 功能描述:20-Bit Audio Codec with DSP and Delay RAM |
| AK7716VT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| AK7719 | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power DSP for Voice and Audio Processing |
| AK7719B | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power DSP for Voice and Audio Processing |
| AK7719BECB | 制造商:AKM 制造商全稱:AKM 功能描述:Low Power DSP for Voice and Audio Processing |
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