Freescale-semiconductor StarCore SC140 Uživatelský manuál stáhnout pdf (Strana 179)

Trace Unit Registers

SC140 DSP Core Reference Manual 4-69

4.11.2 Trace Buffer Read Pointer Register (TB_RD)

TB_RD is a 16-bit register that points to the location in the RAM buffer from which the next value is read.

The register is reset when the trace buffer is enabled.

4.11.3 Trace Buffer Write Pointer Register (TB_WR)

TB_WR is a 16-bit register that points to the next location available for writing into the buffer. The register

is reset when the trace buffer is enabled.

4.11.4 Trace Buffer Register (TB_BUFF)

This 32-bit register is used to read the contents of the trace buffer. For details, see Section 4.5.5.3,

“Reading the Trace Buffer (TB_BUFF).” It is a pipeline register inside the core, not the off-core trace

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Freescale-semiconductor StarCore SC140 Uživatelský manuál Strana 179