參數(shù)資料
型號： TLV320AIC13C
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO30
封裝： PLASTIC, SOP-30
文件頁數(shù)： 14/55頁
文件大?。?/td> 455K
代理商： TLV320AIC13C
3–8
MCLK
DIN
DOUT
FS
SCLK
MCLK
DIN
DOUT
FS
SCLK
MCLK
DIN
DOUT
FS
SCLK
Slave 2
Slave 1
Slave 0
Master
MCLK
DIN
DOUT
FSD
SCLK
FSD
FS
CLKOUT
DX
DR
FSX
FSR
CLKX
CLKR
TMS320C5x
M/S
FSD
IOVDD
1 k
100 MHz Max
IOVDD
Figure 3–8. Cascade Connection (To DSP Interface)
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 3–9. 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 AIC13s 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 bits D1 and D0 of the control register 2 to 00 or 01. 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 bits D1 and D0 control register
2 to 10 or 11. 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 AIC13. 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 3–2 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.
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