8.2.4. Multiplexed trace port, single target connector pinout (ETMv1.x and ETMv2.x)

Note

This option is supported only in ETMv1.x and ETMv2.x.

The pinout for a multiplexed trace port, single-processor target connector is shown in Table 8.7.

Table 8.7. Multiplexed trace port, single target connector pinout

Pin

Signal name

Pin

Signal name

38

PIPESTAT[0] + TRACESYNC in ETMv1.x

PIPESTAT[0] + PIPESTAT[3] in ETMv2.x

37

No connect

36

PIPESTAT[1] + TRACEPKT[1]

35

No connect

34

PIPESTAT[2] + TRACEPKT[2]

33

No connect

32

TRACEPKT[0,3]

31

No connect

30

TRACEPKT[4,5]

29

No connect

28

TRACEPKT[6,7]

27

No connect

26

TRACEPKT[8,9]

25

No connect

24

TRACEPKT[10,11]

23

No connect

22

TRACEPKT[12,13]

21

nTRST

20

TRACEPKT[14,15]

19

TDI

18

No connect

17

TMS

16

No connect

15

TCK

14

VSupply

13

RTCK

12

VTRef

11

TDO

10

EXTTRIG

9

nSRST

8

DBGACK

7

DBGRQ

6

TRACECLK

5

GND

4

No connect

3

No connect

2

No connect

1

No connect


Table 8.8 shows the edges that you must use to sample the pairs of signals in a multiplexed trace port connector.

Table 8.8. Paired signals in a multiplexed trace port connector

Connector groupsSignals sampled on the rising edge of TRACECLKSignals sampled on the falling edge of TRACECLK
These signals are paired for a 4-pin trace port connectorThese signals are paired for a 6-pin trace port connectorPIPESTAT[0]

TRACESYNC in ETMv1 PIPESTAT[3] in ETMv2

PIPESTAT[1]TRACEPKT[1]
PIPESTAT[2]TRACEPKT[2]
TRACEPKT[0]TRACEPKT[3]
-TRACEPKT[4]TRACEPKT[5]
TRACEPKT[6]TRACEPKT[7]
-TRACEPKT[8]TRACEPKT[9]
TRACEPKT[10]TRACEPKT[11]
TRACEPKT[12]TRACEPKT[13]
TRACEPKT[14]TRACEPKT[15]

Note

Pins 1, 2, 3, and 4 must be true no-connects. Pin 5 and all unused TRACEPKT pins must be connected to ground on the target board.

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