9System Interface
9 – 7
Control Field Description Reset Reboot
Bus Exchange Register
PX PX register undefined undefined
Status Registers
IMASK Interrupt service enables 0 0
ASTAT Arithmetic status 0 0
MSTAT Mode status 0 unchanged
SSTAT Stack status 0x55 0x55
ICNTL Interrupt control undefined unchanged
IFC Interrupt force/clear 0 0
Control Registers (memory-mapped)
BWAIT Boot memory wait states 3 unchanged
BPAGE Boot page 0 unchanged
SPORT1 configure Configuration 1 unchanged
SPE1 SPORT1 enable 0 unchanged
DWAIT0–4 Data memory wait states 7 unchanged
PWAIT Program memory wait 7 unchanged
TCOUNT Timer count register undefined operates during reboot
TPERIOD Timer period register undefined unchanged
TSCALE Timer scale register undefined unchanged
Serial Port 1 Control Registers (memory-mapped)
ISCLK Internal serial clock 0 unchanged
RFSR, TFSR Frame sync required 0 unchanged
RFSW, TFSW Frame sync width 0 unchanged
IRFS, ITFS Internal frame sync 0 unchanged
INVRFS, INVTFS Invert frame sense 0 unchanged
DTYPE Companding type, format 0 unchanged
SLEN Serial word length 0 unchanged
SCLKDIV Serial clock divide undefined unchanged
RFSDIV RFS divide undefined unchanged
RBUF, TBUF Autobuffering enable 0 0
TIREG, RIREG Autobuffer I index undefined unchanged
TMREG, RMREG Autobuffer M index undefined unchanged
FO Flag Out value undefined unchanged
Table 9.3 ADSP-2105 State After Reset Or Software Reboot
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