dsp56362 Freescale Semiconductor, Inc, dsp56362 Datasheet - Page 117

• Manufacturer Part Number: dsp56362
• Description: Dsp56362 24-bit Audio Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

Appendix A Power Consumption Benchmark
The following benchmark program permits evaluation of DSP power usage in a test situation. It enables
the PLL, disables the external clock, and uses repeated multiply-accumulate instructions with a set of
synthetic DSP application data to emulate intensive sustained DSP operation.
Freescale Semiconductor
;********************************************************************;*********
***********************************************************
;* ;* CHECKS
;********************************************************************
I_VEC EQU $000000
START EQU $8000
INT_PROG
INT_XDAT
INT_YDAT
;
; Default: 1 w.s (SRAM)
;
;
; Load the program
;
PLOAD_LOOP
;
; Load the X-data
;
page
nolist
INCLUDE "ioequ.asm"
INCLUDE "intequ.asm"
list
org
movep #$0123FF,x:M_BCR; BCR: Area 3 : 1 w.s (SRAM)
movep
move
move
do
move
move
nop
move
move
EQU $100 ; INTERNAL program memory starting address
EQU $0
EQU $0
Typical Power Consumption
200,55,0,0,0
; Interrupt vectors for program debug only
; MAIN (external) program starting address
; INTERNAL X-data memory starting address
; INTERNAL Y-data memory starting address
P:START
#$0d0000,x:M_PCTL
#INT_PROG,r0
#PROG_START,r1
#(PROG_END-PROG_START),PLOAD_LOOP
p:(r1)+,x0
x0,p:(r0)+
#INT_XDAT,r0
#XDAT_START,r1
DSP56362 Technical Data, Rev. 4
; PLL enable
; CLKOUT disable
; XTAL disable
A-1