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參數(shù)資料
| 型號： | TLV320AIC29IRGZR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC48 |
| 封裝： | 7 X 7 MM, GREEN, PLASTIC, QFN-48 |
| 文件頁數(shù)： | 42/87頁 |
| 文件大?。?/td> | 1051K |
| 代理商： | TLV320AIC29IRGZR |
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TLV320AIC29
SLAS494B DECEMBER 2005 REVISED OCTOBER 2007
www.ti.com
47
REGISTER 02H: Buffer Control
BIT
NAME
RESET
VALUE
READ/
WRITE
FUNCTION
D15
BUFRES
0
R/W
Buffer Reset.
0 => Buffer mode is disabled and RDPTR, WRPTR & TGPTR set to their reset value.
1 => Buffer mode is enabled.
D14
BUFCONT
0
R/W
Buffer Mode Selection
0 => Continuous conversion mode.
1 => Single shot mode.
D13D11
BUFTL
000
R/W
Trigger Level TL selection of Buffer used for SAR ADC
000 => 8
001 => 16
010 => 24
011 => 32
100 => 40
101 => 48
110 => 56
111 => 64
D10
BUFOVF
0
R
Buffer Full Flag
0 => Buffer is not full.
1 => Buffer is full. This means buffer contains 64 unread converted data.
D9
BUFEMF
1
R
Buffer Empty Flag
0 => Buffer is not empty.
1 => Buffer is empty. This means there is no unread converted data in the buffer.
D8D0
0’s
R
Reserved
REGISTER 03H: Reference Control
BIT
NAME
RESET
VALUE
READ/
WRITE
FUNCTION
D15D6
0’s
R
Reserved
D5
0
R/W
Reserved. Always write 0 to this bit.
D4
VREFM
0
R/W
Voltage Reference Mode. This bit configures the VREF pin as either external reference or internal
reference.
0 => External reference
1 => Internal reference
D3D2
RPWUDL
00
R/W
Reference Power Up Delay. These bits allow for a delay time for measurements to be made after
the reference powers up, thereby assuring that the reference has settled
00 => 0
s
01 => 100
s
10 => 500
s
11 => 1000
s
Note: This will be valid only when device is programmed for internal reference and Bit D1 = 1, i.e.,
reference is powered down between the conversions if not required.
D1
RPWDN
1
R/W
Reference Power Down. This bit controls the power down of the internal reference voltage.
0 => Powered up at all times.
1 => Powered Down between conversions.
Note: When D4 = 0 i.e. device is in external reference mode then the internal reference is powered
down always.
D0
IREFV
0
R/W
Internal Reference Voltage. This bit selects the internal voltage for AUX ADC.
0 => VREF = 1.25 V
1 => VREF = 2.50 V
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