DSP56309EVM Freescale Semiconductor, DSP56309EVM Datasheet - Page 230

• Manufacturer Part Number: DSP56309EVM
• Description: KIT EVALUATION FOR XC56309
• Manufacturer: Freescale Semiconductor
• Type: DSPr

Specifications of DSP56309EVM

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Description/function: Audio DSPs
• Product: Audio Modules
• For Use With/related Products: DSP56309
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Bootstrap Program
; MD:MC:MB:MA=1001
EPROMLD
_LOOP9
_LOOP11
_LOOP10
;========================================================================
FINISH
; This is the exit handler that returns execution to normal
; expanded mode and jumps to the RESET vector.
;========================================================================
; The following modes are reserved, some of which are used for internal testing
; Can be implemented in future.
;
OMR0XXX
;========================================================================
; This mode is reserved for internal testing purposes
; MD:MC:MB:MA=0111
;;---------------------------------------------------------
;;
;;
;;
;;
;;
;;
;;
;;
;;
A-8
burnin mode
Intended to be used for burn-in test. Wake up from reset
with PINIT set for execution in maximum frequency.
All RAM locations are validated, arithmetic/logic operations
are validated (add, eor) and exercised (mac).
While all tests pass, the SCK0 pin will continue to toggle.
When the test fails the DSP enters DEBUG and stops execution.
move #BOOT,r2
movep #AARV,X:M_AAR1
do #6,_LOOP9
movem p:(r2)+,a2
asr #8,a,a
move a1,r0
move a1,r1
do a0,_LOOP10
do #3,_LOOP11
movem p:(r2)+,a2
asr #8,a,a
movem a1,p:(r0)+
nop
andi #$0,ccr
jmp (r1)
jclr #2,omr,EPRSCILD
jclr #1,omr,OMR1IS0
jclr #0,omr,I8051HOSTLD ; If MD:MC:MB:MA=0110, default to 8051 Host
; r2 = address of external EPROM
; aar1 configured for SRAM types of access
; read number of words and starting address
; Get the 8 LSB from ext. P mem.
; Shift 8 bit data into A1
;
; starting address for load
; save it in r1
; a0 holds the number of words
; read program words
; Each instruction has 3 bytes
; Get the 8 LSB from ext. P mem.
; Shift 8 bit data into A1
; Go get another byte.
; Store 24-bit result in P mem.
; pipeline delay
; and go get another 24-bit word.
; Boot from EPROM done
; Clear CCR as if RESET to 0.
; Then go to starting Prog addr.
; If MD:MC:MB:MA=00xx, default to EPROM/SCI
; IF MD:MC:MB:MA=010x, default to ISA/HC11
; If MD:MC:MB:MA=0111, execute burnin test
DSP56309 User’s Manual, Rev. 1
Freescale Semiconductor