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參數資料
| 型號： | TLV5614IYZR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 9 us SETTLING TIME, 12-BIT DAC, UUC16 |
| 封裝： | GREEN, DIE-16 |
| 文件頁數： | 7/25頁 |
| 文件大小： | 500K |
| 代理商： | TLV5614IYZR |
www.ti.com
SBAS401 – DECEMBER 2006
.word 00E53h
.word 00D61h
.word 00C3Ah
.word 00AE9h
.word 0097Ch
.word 00800h
.word 00684h
.word 00517h
.word 003C6h
.word 0029Fh
.word 001ADh
.word 000F9h
.word 0008Ah
.word 00064h
.word 0008Ah
.word 000F9h
.word 001ADh
.word 0029Fh
.word 003C6h
.word 00517h
.word 00684h
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; Main Program
;––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
.ps 1000h
.entry
start
;––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; disable interrupts
;––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
setc INTM ; disable maskable interrupts
splk #0ffffh, IFR; clear all interrupts
splk #0004h, IMR; timer interrupts unmasked
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; set up the timer
; timer period set by values in PRD and TDDR
; period = (CLKOUT1 period)
× (1+PRD) × (1+TDDR)
; examples for TMS320C203 with 40MHz main clock
; Timer rate TDDR PRD
; 80 kHz 9 24 (18h)
; 50 kHz 9 39 (27h)
;––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
prd_val.equ 0018h
tcr_val.equ 0029h
splk #0000h, temp; clear timer
out temp, TIM
splk #prd_val, temp; set PRD
out temp, PRD
splk #tcr_val, temp; set TDDR, and TRB=1 for auto-reload
out temp, TCR
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; Configure IO0/1 as outputs to be :
; IO0 CS - and set high
; IO1 LDAC - and set high
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
in temp, ASPCR; configure as output
lacl temp
or #0003h
sacl temp
out temp, ASPCR
in temp, IOSR; set them high
lacl temp
or #0003h
sacl temp
out temp, IOSR
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
; set up serial port for
; SSPCR.TXM=1 Transmit mode - generate FSX
; SSPCR.MCM=1 Clock mode - internal clock source
; SSPCR.FSM=1 Burst mode
;–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
splk #0000Eh, temp
15
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