2 trace buffer read pointer register (tb_rd), 3 trace buffer write pointer register (tb_wr), 4 trace buffer register (tb_buff) – Freescale Semiconductor StarCore SC140 User Manual
Page 179: Trace buffer read pointer register (tb_rd) -69, Trace buffer write pointer register (tb_wr) -69, Trace buffer register (tb_buff) -69, Loop timing -32
