參數(shù)資料
型號: TLV5619PW
廠商: Texas Instruments, Inc.
英文描述: 2.7 V TO 5.5 V 12-BIT PARALLEL DIGITAL-TO-ANALOG CONVERTER WITH POWER DOWN
中文描述: 2.7 V至5.5 V 12位并行數(shù)字至模擬轉換器與電源向下
文件頁數(shù): 15/18頁
文件大?。?/td> 251K
代理商: TLV5619PW
TLV5619
2.7 V TO 5.5 V 12-BIT PARALLEL DIGITAL-TO-ANALOG CONVERTER
WITH POWER DOWN
SLAS172C – DECEMBER 1997 – REVISED APRIL 2000
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
software listing
; File: ramp.asm
; Description: This program generates a ramp.
;––––––––––––– I/O and memory mapped regs –––––––––––
.include “regs.asm”
TLV5619
.equ
0084h
;––––––––––––– vectors –––––––––––––––––––––––––––––––
.ps
0h
b
start
b
INT1
b
INT23
b
TIM_ISR
*********************************************************************
* Main Program
*********************************************************************
.ps
.entry
1000h
start:
ldp
#0
; set data page to 0
; disable interrupts
setc
splk
splk
INTM
#0ffffh, IFR
#0004h, IMR
; disable maskable interrupts
; set up the timer
splk
splk
out
out
splk
out
#0000h, 60h
#0042h, 61h
61h, PRD
60h, TIM
#0c2fh, 62h
62h, TCR
; enable interrupts
clrc
INTM
; enable maskable interrupts
; loop forever!
next
idle
; wait for interrupt
b
next
; all else fails stop here
done
b
done ; hang there
*********************************************************************
* Interrupt Service Routines
*********************************************************************
INT1:
ret
; do nothing and return
INT23:
ret
; do nothing and return
TIM_ISR:
; useful code
add
sacl
out
clrc
ret
.end
#1h ; increment accumulator
60h
60h, TLV5619 ; write to DAC
intm ; re-enable interrupts
; return from interrupt
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