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參數(shù)資料
| 型號： | AK5365 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 24-BIT 96KHZ ADC WITH SELETOR/PGA/ALCl |
| 中文描述： | 24位96kHz與SELETOR藝術(shù)發(fā)展局/美國PGA /淋巴瘤 |
| 文件頁數(shù)： | 29/41頁 |
| 文件大?。?/td> | 286K |
| 代理商： | AK5365 |
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ASAHI KASEI
[AK5365
]
MS0164-E-01
2002/08
- 29 -
(2)-2. READ Operations
Set the R/W bit = “1” for the READ operation of the AK5365. After transmission of data, the master can read the next
address’s data by generating an acknowledge instead of terminating the write cycle after the receipt of the first data word.
After receiving each data packet the internal 5-bit address counter is incremented by one, and the next data is automatically
taken into the next address. If the address exceeds 07H prior to generating a stop condition, the address counter will “roll
over” to 00H and the previous data will be overwritten.
The AK5365 supports two basic read operations: CURRENT ADDRESS READ and RANDOM ADDRESS READ.
(2)-2-1. CURRENT ADDRESS READ
The AK5365 contains an internal address counter that maintains the address of the last word accessed, incremented by one.
Therefore, if the last access (either a read or write) were to address n, the next CURRENT READ operation would access
data from the address n+1. After receipt of the slave address with R/W bit set to “1”, the AK5365 generates an
acknowledge, transmits 1-byte of data to the address set by the internal address counter and increments the internal address
counter by 1. If the master does not generate an acknowledge to the data but instead generates a stop condition, the
AK5365 ceases transmission.
SDA
Slave
Address
S
S
T
A
R
T
R/W="1"
A
C
K
A
C
K
Data(n+1)
A
C
K
Data(n+2)
A
C
K
A
C
K
Data(n+x)
A
C
K
P
S
T
O
P
Data(n)
Figure 19. CURRENT ADDRESS READ
(2)-2-2. RANDOM ADDRESS READ
The random read operation allows the master to access any memory location at random. Prior to issuing the slave address
with the R/W bit set to “1”, the master must first perform a “dummy” write operation. The master issues a start request, a
slave address (R/W bit = “0”) and then the register address to read. After the register address is acknowledged, the master
immediately reissues the start request and the slave address with the R/W bit set to “1”. The AK5365 then generates an
acknowledge, 1 byte of data and increments the internal address counter by 1. If the master does not generate an
acknowledge to the data but instead generates a stop condition, the AK5365 ceases transmission.
SDA
Slave
Address
S
S
T
A
R
T
R/W="0"
A
C
K
A
C
K
A
C
K
Data(n)
A
C
K
Data(n+x)
A
C
K
P
S
T
O
P
Sub
Address(n)
S
Slave
Address
R/W="1"
S
T
A
R
T
Data(n+1)
A
C
K
A
C
K
Figure 20. RANDOM ADDRESS READ
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK5365VQ | 24-BIT 96KHZ ADC WITH SELETOR/PGA/ALCl |
| AK5366VR | 24-Bit 48kHz ツヒ ADC with Selector/PGA/ALC |
| AK5366 | Circular Connector; No. of Contacts:6; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-6 RoHS Compliant: No |
| AK5366VQ | Circular Connector; No. of Contacts:6; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-6 RoHS Compliant: No |
| AK5370 | Circular Connector; No. of Contacts:6; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-6 RoHS Compliant: No |
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