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參數(shù)資料
| 型號： | AK4533 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | Audio Codec with Touch Screen Controller |
| 中文描述： | 音頻編解碼器與觸摸屏控制器 |
| 文件頁數(shù)： | 19/40頁 |
| 文件大小： | 473K |
| 代理商： | AK4533 |
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[ASAHI KASEI]
<Revision 0.9a>
July 00
18
(b)
Audio/Touch Screen Control Interface(A/T I/F)
The AK4533 incorporates 4 pin (CCLK, CS, CDTO, and CDTI) digital serial interface that links it to the external controller. This
interface is used to access to the internal register. T/C I/F protocol has 16 bit field, and consists of three groups; one write/read bit, three
address bits, and eight control bits. Data format is MSB first.
Write to the register
A/T interface is enabled by the CS pin = "H". In this mode, internal registers may be either written to or read from 4-wire uP interface.
The device can recognizes the write request by the first bit = "1". Address and data is also clocked in via CDTI pin at the rising edge of
CCLK. For write operation the control data is latched at the rising edge of 16th CCLK, after high-to-low transition. When more than
16 CCLK is input, the device ignores the CCLK. CS can be returned to "L" at the same time of 16th falling edge of CCLK. CS pin
should be "L" once after the write cycle terminates.
For read operation, the device can recognizes the read request by the first bit = "0". Address is clocked in via CDTI pin at the rising
edge of CCLK. The AK4533 outputs the addressed value via CDTO pin from the 8th falling edge of CCLK. At the 16th falling edge
of CCLK, CDTO outputs "L". When more than 16 CCLK is input, CDTO still outputs "L". CS can be returned to "L" at the same time
of 16th falling edge of CCLK. CS pin should be "L" once after the write cycle terminates.
CCLK, CS, and CDTI should be "L" while the device is idle state. CDTO is "L" under idle state.
("Idle state" means that the read/write operation is NOT executed)
CCLK(i)
CS(i)
CDTI(i)
“1” A2 A1 A0
D7 D6 D5 D4 D3 D2 D1 D0
“L”
“L”
“L”
“L”
A2-A0:
Address
D7-D0:
Data
CCLK(i)
CS(i)
CDTI(i)
“0” A2 A1 A0
CDTO(o)
D7 D6 D5 D4 D3 D2 D1 D0
“L”
“L”
“L”
“L”
“L”
“L”
(1) Write to the register
(2)Read from the register
1
8 9
16
1
8 9
16
Figure 12. Audio/Touch Screen Control Interface Timing
相關PDF資料 |
PDF描述 |
|---|---|
| AK4534 | 16Bit CODEC with MIC/HP/SPK-AMP |
| AK4534VN | 16Bit CODEC with MIC/HP/SPK-AMP |
| AK4536 | 16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| AK4536VN | 16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| AK4537 | 16-Bit ツヒ Stereo CODEC with MIC/HP/SPK-AMP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AK4534 | 制造商:AKM 制造商全稱:AKM 功能描述:16Bit CODEC with MIC/HP/SPK-AMP |
| AK4534VN | 制造商:AKM 制造商全稱:AKM 功能描述:16Bit CODEC with MIC/HP/SPK-AMP |
| AK4534VQ | 功能描述:IC CODEC 16BIT MIC/HP/SPK-AMP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購買時間 標準包裝:1,000 |
| AK4536 | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| AK4536VN | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
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