2.12.3. ETM9 supported configurations

Table 2.18 shows the four standard configurations for ETM9.

Table 2.18. ETM9 configurations

Resource description

Small

Medium

Mediumplus

Large

Pairs of address comparators

1

4

4

8

Data value comparators

0

2

2

8

Memory map decoders

4

8

8

16

Counters

1

2

2

4

Sequencer present

No

Yes

Yes

Yes

External inputs

2

4

4

4

External outputs

0

1

1

4

FIFOFULL present

Yes[a]

Yes[a]

Yes[a]

Yes

FIFO depth

9

18

45

45

Port size[b]

4 or 84, 8, or 164, 8, or 164, 8, or 16

[a] Not available in ETM9 Rev 0. In ETM9 Rev 0, FIFOFULL is supported only in the Large configuration.

[b] Software-selectable using the ETMCR, register 0x000.


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