參數(shù)資料
型號: SPAKDSP321VL275
廠商: Freescale Semiconductor
文件頁數(shù): 62/84頁
文件大?。?/td> 0K
描述: IC DSP 24BIT 275MHZ 196-MAPBGA
標(biāo)準(zhǔn)包裝: 126
系列: DSP56K/Symphony
類型: 定點
接口: 主機(jī)接口,SSI,SCI
時鐘速率: 275MHz
非易失內(nèi)存: ROM(576 B)
芯片上RAM: 576kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 1.60V
工作溫度: -40°C ~ 100°C
安裝類型: 表面貼裝
封裝/外殼: 196-LBGA
供應(yīng)商設(shè)備封裝: 196-MAPBGA(15x15)
包裝: 托盤
DSP56321 Technical Data, Rev. 11
Freescale Semiconductor
A-1
Power Consumption Benchmark
A
The following benchmark program evaluates DSP56321 power use in a test situation. It enables the PLL, disables
the external clock, and uses repeated multiply-accumulate (MAC) instructions with a set of synthetic DSP
application data to emulate intensive sustained DSP operation.
;**************************************************************************
;*
*
;*
CHECKS
Typical Power Consumption
*
;*
*
;**************************************************************************
page
200,55,0,0,0
nolist
I_VEC EQU $000000; Interrupt vectors for program debug only
START EQU $8000; MAIN (external) program starting address
INT_PROG
EQU $100 ; INTERNAL program memory starting address
INT_XDAT
EQU $0; INTERNAL X-data memory starting address
INT_YDAT
EQU $0; INTERNAL Y-data memory starting address
INCLUDE "ioequ.asm"
INCLUDE "intequ.asm"
list
org
P:START
;
movep #$0243FF,x:M_BCR ;
; BCR: Area 3 = 2 w.s (SRAM)
; Default: 2w.s (SRAM)
;
movep
#$00000F,x:M_PCTL
; XTAL disable
; PLL enable
;
; Load the program
;
move
#INT_PROG,r0
move
#PROG_START,r1
do
#(PROG_END-PROG_START),PLOAD_LOOP
move
p:(r1)+,x0
move
x0,p:(r0)+
nop
PLOAD_LOOP
;
; Load the X-data
;
move
#INT_XDAT,r0
move
#XDAT_START,r1
do
#(XDAT_END-XDAT_START),XLOAD_LOOP
move
p:(r1)+,x0
move
x0,x:(r0)+
XLOAD_LOOP
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