Freescale-semiconductor StarCore SC140 Manual do Utilizador descarregar pdf (Página 164)

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4-54 SC140 DSP Core Reference Manual

Event Detection Unit (EDU) Channels and Registers

4.9 Event Detection Unit (EDU) Channels and

Registers

The various event detection channels and corresponding registers are described in the sections that follow.

4.9.1 Address Event Detection Channel (EDCA)

The EDCA can be used to detect the following:

• Program breakpoint, specified on a specific PC value or range

• Data address breakpoint, specified on a specific data address or range.

The functionality of these registers is described in the following sections.

4.9.1.1 EDCA Control Registers (EDCAi_CTRL)

EDCAi_CTRL is a 16-bit register used to control the behavior of the corresponding EDCA. The following

sections describe the functionality of each bit in the EDCAi_CTRL register.

Figure 4-21 displays the configuration of the EDCAi_CTRL register.

Figure 4-21. EDCA Control Register (EDCAi_CTRL)

Table 4-19 describes the EDCAi_CTRL fields.

BIT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 BIT 0

EDCAEN CS CBCS CACS ATS BS

TYPE rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw

RESET 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Table 4-19. EDCA_CTRL Description

Name Description Settings

Bits

14-15

Reserved

1 2 ... 159 160 161 162 163 164 165 166 167 168 169 ... 759 760

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