參數(shù)資料
型號: DAC8512GBC
廠商: ANALOG DEVICES INC
元件分類: DAC
英文描述: % V, Serial Input Complete 12-Bit DAC
中文描述: SERIAL INPUT LOADING, 16 us SETTLING TIME, 12-BIT DAC, UUC8
封裝: DIE-8
文件頁數(shù): 19/20頁
文件大?。?/td> 757K
代理商: DAC8512GBC
DAC8512
–19–
REV. A
TFRLP
LDAA
STAA
0,X
SPDR
Get a byte to transfer via SPI
Write SDI data reg to start xfer
*
WAIT
LDAA
BPL
SPSR
WAIT
Loop to wait for SPIF
SPIF is the MSB of SPSR
(when SPIF is set, SPSR is negated)
Increment counter to next byte for xfer
Are we done yet
If not, xfer the second byte
*
INX
CPX
BNE
#SDI2+1
TFRLP
*
*Update DAC output with contents of DAC register
*
BCLR
BSET
*
BSET
PORTD,Y
PORTD,Y
$20 Assert LD/
$20 Latch DAC register
PORTC,Y
$01 De-assert CS/
PULA When done, restore registers X, Y & A
PULY
PULX
RTS
** Return to Main Program **
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