UM0434 datasheet(346/390 Pages) STMICROELECTRONICS

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UM0434

Nexus3 module

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12.4.10

Data trace start address 1 and 2 registers (DTSA1 and DTSA2)

The data trace start address registers, shown in

Table 238, define the start addresses for

each trace channel.

12.4.11

Data trace end address registers 1 and 2 (DTEA1 and DTEA2)

The data trace end address registers, shown in

Table 239, define the end addresses for

each trace channel.

Table 240 shows the range that is selected for data trace for various cases of DTSA being

less than, greater than, or equal to DTEA.

Note:

DTSA must be less than DTEA to guarantee correct data write/read traces. Data trace

ranges are inclusive of the DTSA and DTEA addresses for range control settings indicating

within range, and are exclusive of the DTSA and DTEA addresses or range control settings

indicating outside of range.

Table 238.

Data trace start address registers

Field

Data Trace Start Address

Reset

All zeros

R/W

Read/Write

Number

DTSA1: 0xE; DTSA2: 0xF

Table 239.

Data trace end address registers

Field

Data Trace End Address

Reset

All zeros

R/W

Read/Write

Number

DTEA1: 0x12; DTEA2: 0x13

Table 240.

Data Trace—Address range options

Programmed values

Range control bit value

Range selected

DTSA < DTEA

The address range lies between the values

specified by DTSA and DTEA. (DTSA -> <-

DTEA)

The address range lies outside the values

specified by DTSA and DTEA. (<-DTSA DTEA->)

DTSA > DTEA

N/A

Invalid range–No trace

DTSA = DTEA

N/A

Invalid range–No trace

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