CS494002 datasheet(72/100 Pages) CIRRUS

72 / 100 page

STAR T

IN TR EQ LO W ?

MSG

==C _BO OT_START

IN TR EQ LO W ?

MSG ==

AB_ APP_START

AB_APPLICATIO N_R UN NIN G

R ESET(LO W )

RESET(H IG H)

WAIT ?? u S

WRITE-C_*

(C_M ASTER_SO U RC E_MO DE)

TIMEO UT

AFTER (10 m S)

TIM EO UT

AFTE R (500 m S)

RE AD-C_*(C_M ESSAG E)

R EAD-AB_*(A B_MESS AGE )

EX IT(ERR OR )

EXIT(E RRO R )

W R ITE -AB_*(AB_H W _C O NFIG_ MSG ,

MS G_ SIZE)

W RITE-AB_*(AB_SW _ CO NFIG _MSG ,

MS G_ SIZE)

W RITE-AB_*(KICKSTAR T,

MS G_ SIZE)

TIMEO UT

AFTER (10 mS )

MSG ==

C_B OO T_SUC CES S

C _APPL ICATIO N_R UN NIN G

EXIT(ER RO R)

W R ITE-C_*(C_ HW _ CO NFIG _MSG ,

MS G_ SIZE)

W RITE-C _*(C_SW _CO N FIG _M SG,

MS G_ SIZE)

W RITE-C_*(KICKS TAR T,

MS G_ SIZE)

R EAD-C_ *(C_ MESSAG E)

RELEAS E

CONTRO L O F B US

W RITE-C_*(C_SO FT_ RESET)

INTREQ LO W ?

MSG ==

C_ APP_START

TIMEO U T

AFTER (10 mS)

READ -C _*(C _ME SSAG E)

EXIT(ER RO R)

IN TR EQ LO W ?

MSG

==C _BO OT_START

INTREQ LO W ?

WRITE-C_*

(C_M ASTER_SO U RC E_MO DE)

TIMEO UT

AFTER (10 m S)

TIM EO UT

AFTE R (500 m S)

RE AD-C_*(C_M ESSAG E)

EX IT(ERR OR )

MSG ==

C _BO OT_SU CC ESS

EXIT(ER RO R)

R EAD-C_*(C_ MESSAG E)

RELEAS E

CONTRO L O F B US

FINTREQ LO W ?

HO UTRD Y HI?

Figure 52. Host Controlled Master Boot

(Downloading both a DSPAB Application Code and a DSPC Application Code)

CS494002 데이터시트(PDF) 72 Page - Cirrus Logic

CS494002 데이터시트(HTML) 72 Page - Cirrus Logic

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