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參數(shù)資料
| 型號： | ISD4004 |
| 廠商： | Winbond Electronics, Corp. |
| 元件分類： | 視頻模塊及開發(fā)工具 |
| 英文描述： | Single-Chip Voice Record/Playback Devices 8-, 10-, 12-, and 16-Minute Durations |
| 中文描述： | 單芯片語音記錄/播放設(shè)備8/10/12/16分鐘持續(xù)時間 |
| 文件頁數(shù)： | 10/28頁 |
| 文件大?。?/td> | 980K |
| 代理商： | ISD4004 |
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ISD4004 Series
6
Voice Solutions in Silicon
1.
Message Cueing can be selected only at the
beginning of a play operation.
2.
As the Interrupt data is shifted out of the ISD4004,
control and address data is being shifted in. Care
should be taken such that the data shifted in is
compatible with current system operation. It is
possible to read interrupt data and start a new
operation at the same time. See Figure 5 through
Figure 8 for Opcode format.
POWER-UP SEQUENCE
The ISD4004 will be ready for an operation after
T
PUD
(25 ms approximately for 8 KHz sample rate).
The user needs to wait T
PUD
before issuing an opera-
tional command. For example, to play from ad-
dress 00 the following programing cycle should be
used.
Playback Mode
1.
Send POWERUP command.
2.
Wait T
PUD
(power-up delay).
3.
Send SETPLAY command with address 00.
4.
Send PLAY command.
The device will start playback at address 00 and it
will generate an interrupt when an EOM is
reached. It will then stop playback.
Record Mode
1.
Send POWERUP command.
2.
Wait T
PUD
(power-up delay).
3.
Send POWERUP command.
4.
Send SETREC command with address 00.
5.
Send REC command.
The device will start recording at address 00 and it
will generate an interrupt when an overflow is
reached (end of memory array). It will then stop re-
cording.
Table 2:Opcode Summary
Instruction
Opcode <8 bits>
Address <16 bits>
Operational Summary
POWERUP
00100XXX
Power-Up: Device will be ready for an operation after T
PUD
.
Initiates Playback from address < A15–A0> .
SETPLAY
11100XXX < A15–A0>
PLAY
11110XXX
Playback from the current address (until EOM or OVF).
SETREC
10100XXX < A15–A0>
Initiates a Record operation from address < A15–A0> .
REC
10110XXX
Records from current address until OVF is reached.
SETMC
MC
1
11101XXX < A15–A0>
Initiates Message Cueing (MC) from address < A15–A0> .
11111XXX
Performs a Message Cue. Proceeds to the end of the current
message (EOM) or enters OVF condition if no more messages are
present.
STOP
0X110XXX
Stops current operation.
STOPPWRDN
RINT
2
0X01XXXX
Stops current Operation and enters stand-by (power-down) mode.
0X110XXX
Read Interrupt status bits: Overflow and EOM.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISD4004-10ME | Single-Chip Voice Record/Playback Devices 8-, 10-, 12-, and 16-Minute Durations |
| ISD4004-10MED | Single-Chip Voice Record/Playback Devices 8-, 10-, 12-, and 16-Minute Durations |
| ISD4004-10MP | Single-Chip Voice Record/Playback Devices 8-, 10-, 12-, and 16-Minute Durations |
| ISD4004-10MS | Single-Chip Voice Record/Playback Devices 8-, 10-, 12-, and 16-Minute Durations |
| ISD4004-10MSI | Single-Chip Voice Record/Playback Devices 8-, 10-, 12-, and 16-Minute Durations |
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