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参数资料
| 型号： | TLV320AIC14C |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO30 |
| 封装： | PLASTIC, TSSOP-30 |
| 文件页数： | 14/54页 |
| 文件大小： | 450K |
| 代理商： | TLV320AIC14C |
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3–8
Master
Slave2
Slave1
Slave0
Slave2
Master
Master FS
DIN/DOUT
Master FSD,
Slave 2 FS
Slave 2 FSD,
Slave 1 FS
Slave 1 FSD,
Slave 0 FS
Slave 0 FSD,
(see Note)
NOTE: Slave 0 FSD should be pulled high for stand-alone-master or cascade configuration. FSD must be pulled low for stand-alone-slave
configuration.
Figure 3–8. Master-Slave Frame-Sync Timing in Continuous Data Transfer Mode
3.7
Host Port Interface
The host port uses a 2-wire serial interface (SCL, SDA) to program the AIC14s six control registers and selectable
protocol between S2C mode and I2C mode. The S2C is a write-only mode and the I2C is a read-write mode selected
by setting the MSB (I2CSEL bit) of control register 4 to 1. If the host interface is not needed, the two pins of SCL and
SDA can be programmed to become general-purpose I/Os by setting the MSB of the control register 4 to 0. If selected
to be used as I/O pins, the SDA and SCL pins become output and input pins respectively, determined by D1 and D0.
Both S2C and I2C require a SMARTDM device address to communicate with the AIC14. One of SMARTDMs
advanced features is the automatic cascade detection (ACD) that enables SMARTDM to automatically detect the total
number of codecs in the serial connection and use this information to assign each codec a distinct SMARTDM device
address. Table 3–1 lists device addresses assigned to each codec in the cascade by the SMARTDM. The master
always has the highest position in the cascade. For example, if there is a total of 8 codecs in the cascade (i.e., one
master and 7 slaves), then the device addresses in row 8 are used in which the master is codec 7 with a device
address of 0111.
Table 3–1. SMARTDM Device Addresses
TOTAL
CODECS
CODECs POSITION IN CASCADE
CODECS
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
0000
2
0001
0000
3
0010
0001
0000
4
0011
0010
0001
0000
5
0100
0011
0010
0001
0000
6
0101
0100
0011
0010
0001
0000
7
0110
0101
0100
0011
0010
0001
0000
8
0111
0110
0101
0100
0011
0010
0001
0000
9
1000
0111
0110
0101
0100
0011
0010
0001
0000
10
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
11
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
12
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
13
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
14
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
15
1110
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
16
1111
1110
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
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