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Debug support (DBG) RM0453

1402/1454 RM0453 Rev 2

38.11.4 TPIU selected pin protocol register (TPIU_SPPR)

Address offset: 0x0F0

Reset value: 0x0000 0001

38.11.5 TPIU formatter and flush status register (TPIU_FFSR)

Address offset: 0x300

Reset value: 0x0000 0008

Bits 31:13 Reserved, must be kept at reset value.

Bits 12:0 PRESCALER[12:0]: selects the baud rate for the asynchronous output, TRACESWO

The baud rate is given by the TRACELKIN frequency divided by (PRESCALER +1).

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.

1514131211109876543210

Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. TXMODE[1:0]

rw rw

Bits 31:2 Reserved, must be kept at reset value.

Bits 1:0 TXMODE[1:0]: selects the protocol used for trace output

0x0: reserved (parallel trace port mode not supported in this device)

0x1: Asynchronous SWO using Manchester encoding

0x2: Asynchronous SWO using NRZ encoding

0x3: reserved

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.

1514131211109876543210

Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.

FTNON

STOP

TCPRE

SENT

FTSTO

PPED

FLINPR

rrrr

Bits 31:4 Reserved, must be kept at reset value.

Bit 3 FTNONSTOP: indicates whether formatter can be stopped or not

1: Formatter cannot be stopped.

ST STM32WL55JC User Manual

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