SPNS141G August 2010 – October 2018 TMS570LS10106 , TMS570LS10116 , TMS570LS10206 , TMS570LS20206 , TMS570LS20216
PRODUCTION DATA.
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The device contains an ARM Cortex™-R4F External Trace Macrocell (ETM-R4) with a 32bit data port. The ETM-R4 module is connected to a Test Port Interface Unit (TPIU) with a 32bit data bus. The ETM-R4 is CoreSight compliant and follows the ARM ETM v3 specification; for more details see ARM CoreSight™ ETM-R4 TRM specification Revr0p0. The ETM-R4 supports "half rate clocking" only.
The ETM clock source can be selected as either VCLK or the external ETMTRACECLKIN pin. The selection is done by the EXTCTRLOUT[1:0] control bits of the TPIU; the default is '00'.
EXTCTRLOUT[1:0] | TPIU/TRACECLKIN |
---|---|
00 | tied-zero |
01 | VCLK |
10 | ETMTRACECLKIN |
11 | tied-zero |