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參數(shù)資料
型號(hào)： TLV320AIC14C
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO30
封裝： PLASTIC, TSSOP-30
文件頁(yè)數(shù)： 21/54頁(yè)
文件大小： 450K
代理商： TLV320AIC14C
3–15
3.9.1
Data Frame Format
D0
D15 – D1
A/D and D/A Data
D15 – D0
A/D and D/A Data
D15 – D0
DIN
(15+1) Bit Mode
(Continuous Data Transfer Mode Only)
DOUT
(16 Bit A/D Data)
DIN
16 Bit Mode
DOUT
16 Bit Mode
Control Frame
Request
Figure 3–18. Data Frame Format
3.9.2
Control Frame Format (Programming Mode)
During the control frame, the DSP sends 16-bit words to the SMARTDM(TM) through DIN to read or write control
registers shown in Table 3–3. The upper byte (Bits D15–D8) of the 16-bit control-frame word defines the read/write
command. Bits D15–D13 define the control register address with register content occupied the lower byte D7–D0.
Bit D12 is set to 0 for a write or to 1 for a read. Bit D11 in the write command is used to perform the broadcast mode.
During a register write, the register content is located in the lower byte of DIN. During a register read, the register
content is output in the lower byte of DOUT in the same control frame, whereas the lower byte of DIN is ignored.
3.9.3
Broadcast Register Write
Broadcast operation is very useful for a cascading system of SMARTDM DSP codecs in which all register
programming can be completed in one control frame. During the control frame and in any register-write time slot, if
the broadcast bit (D11) is set to 1, the register content of that time slot is written into the specified register of all devices
in cascade (see Figure 3–20). This reduces the DSP’s overhead of doing multiple writes to program same data into
cascaded devices.
1
D11
0
1
0
1
DIN (Read)
DIN (Write)
Don’t care
D15
D13
D14
D13
D14
0
D9
D10
D11
DOUT (Read)
D15
D13
D14
D12
Data to be Written Into Register
D7 – D0
Register
Address
SMARTDM Device
Address
Register Content
R/W Broadcast
Register
Address
Figure 3–19. Control Frame Data Format
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TLV320AIC14EVM 功能描述:EVALUATION MOD FOR TLV320AIC14 RoHS:否 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 過(guò)時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:*
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