SPNS254A June 2022 – March 2024 TMS570LC4357-SEP
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
The ETM clock source can be selected as either VCLK or the external ETMTRACECLKIN terminal. The selection is chosen by the EXTCTLOUT[1:0] control bits of the TPIU (default is '00'). The address of this register is the TPIU base address + 0x404.
Before the user begins accessing TPIU registers, the TPIU should be unlocked through the CoreSight key and 1 or 2 written to this register.
EXTCTLOUT[1:0] | TPIU/TRACECLKIN |
---|---|
00 | Tied-zero |
01 | VCLK |
10 | ETMTRACECLKIN |
11 | Tied-zero |