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Errors and Status

13.1.10 Unexpected Max and Min Iterations: MAXMINITER

The MAXMINITER bit is set to 1 if the minimum iterations are greater than the maximum iterations.

13.2 Status

The TCP2 status register (TCPSTAT) reflects the state of the TCP2.

13.2.1TCP2 Decoder Status: dec_busy

The dec_busy is set to 0 if the MAP decoder is in state 0. The dec_busy is set to 1 if the MAP decoder is in states 1 to 8.

13.2.2TCP2 Stopped Due to Error: ERR

The ERR bit is set to 1 if the TCP2 has encountered an error. The ERR bit is reset by writing a new START command in the TCP2 execution register (TCPEXE).

13.2.3TCP2 Waiting for Input Control Parameters Write: WIC

The WIC bit is set to 1 when the TCP2 is waiting for the input configurations parameters to be written. After the very first decoding is finished, an XEVT is generated to allow any ready user-channel to be decoded and the WIC bit is set to 1.

13.2.4TCP2 Waiting for Interleaver Table Write: WINT

The WINT bit is set to 1 when the TCP2 is waiting for the interleaver table to be written.

13.2.5TCP2 Waiting for Systematics and Parities Write: WSP

The WSP bit is set to 1 when the TCP2 is waiting for the systematics and parities to be written.

13.2.6TCP2 Waiting for A prioris Write: WAP

The WAP bit is set to 1 when the TCP2 is waiting for the a prioris to be written.

13.2.7TCP2 Waiting for Extrinsics Read: REXT

The REXT bit is set to 1 when the TCP2 is waiting for the extrinsics to be read.

13.2.8TCP2 Waiting for Hard-Decisions Read: RHD

The RHD bit is set to 1 when the TCP2 is waiting for the hard decisions to be read.

13.2.9TCP2 Waiting for Output Parameters Read: ROP

The ROP bit is set to 1 when the TCP2 is waiting for the output parameters to be read.

13.2.10 TCP2 Halted Due to Emulation: emuhalt

The emuhalt bit is set to 1 when the TCP2 is halted due to emulation.

13.2.11 TCP2 Active Map status: Active_map

The active_map bit is set to 1 when the TCP2 is processing MAP1.

SPRUGK1–March 2009

TMS320C6457 Turbo-Decoder Coprocessor 2

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Texas Instruments TMS320C6457 DSP manual Status