MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 976

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Debug support (DBG)
Note:
976/995
TPUI TRACE pin assignment
By default, these pins are NOT assigned. They can be assigned by setting the
TRACE_IOEN and TRACE_MODE bits in the MCU Debug component configuration
register. This configuration has to be done by the debugger host.
In addition, the number of pins to assign depends on the trace configuration (asynchronous
or synchronous).
●
●
To assign the TRACE pin, the debugger host must program the bits TRACE_IOEN and
TRACE_MODE[1:0] of the Debug MCU configuration Register (DBGMCU_CR). By default
the TRACE pins are not assigned.
This register is mapped on the external PPB and is reset by the PORESET (and not by the
SYSTEM reset). It can be written by the debugger under SYSTEM reset.
Table 212. Flexible TRACE pin assignment
1. When Serial Wire mode is used, it is released. But when JTAG is used, it is assigned to JTDO.
By default, the TRACECLKIN input clock of the TPIU is tied to GND. It is assigned to HCLK
two clock cycles after the bit TRACE_IOEN has been set.
DBGMCU_CR
0
1
1
1
1
register
Asynchronous mode: 1 extra pin is needed
Synchronous mode: from 2 to 5 extra pins are needed depending on the size of the
data trace port register (1, 2 or 4):
–
–
–
–
–
XX
00
01
10
11
TRACECK
TRACED(0) if port size is configured to 1, 2 or 4
TRACED(1) if port size is configured to 2 or 4
TRACED(2) if port size is configured to 4
TRACED(3) if port size is configured to 4
Pins assigned for:
Synchronous Trace
Synchronous Trace
Synchronous Trace
No Trace (default
Asynchronous
state)
Trace
1 bit
2 bit
4 bit
Doc ID 13902 Rev 9
TRACESWO
TRACESWO
Released
Released
JTDO/
PB3 /
(1)
(1)
TRACEC
TRACEC
TRACEC
TRACEC
PE2 /
K
K
K
K
TRACE I/O pin assigned
TRACED
TRACED
TRACED
TRACED
PE3 /
[0]
[0]
[0]
[0]
TRACED[
TRACED[
TRACED[
PE4 /
1]
1]
1]
(usable as GPIO)
TRACED[
TRACED[
Released
PE5 /
2]
2]
TRACED[
TRACED[
RM0008
PE6 /
3]
3]