SH7708 datasheet(145/633 Pages) RENESAS

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7.2.3

Break ASID Register A (BASRA)

Bit:

Bit name:

BASA7

BASA6

BASA5

BASA4

BASA3

BASA2

BASA1

BASA0

Initial value:

—

R/W:

R/W

Break ASID register A (BASRA) specifies the ASID that serves as the break condition for channel

A. It is compared to the ASID field of the MMU's PTEH register. BASRA is an 8-bit read/write

Bits 7 to 0—Break ASID A7 to 0 (BASA7 to BASA0): These bits store the ASID (bits 7 to 0) that

is the channel A break condition.

7.2.4

Break ASID Register B (BASRB)

BASRB is the break ASID register for channel B. The bit configuration is the same as for

BASRA.

7.2.5

Break Address Mask Register A (BAMRA)

Bit:

Bit name:

—

BASMA

BAMA1

BAMA0

Initial value:

—

R/W:

R/W

Break address mask register A (BAMRA) is an 8-bit read/write register that specifies which bits in

the break ASID specified in BASRA and which bits in the break address specified in BARA are

masked. It is not initialized by a reset.

Bits 7 to 3—Reserved: These bits always read 0. The write value should always be 0.

Bit 2—Break ASID Mask A (BASMA): Indicates whether the bits of the channel A breakpoint

ASID7 to ASID0 (BASA7 to BASA0) set in BASRA are masked.

Bit 2: BASMA

Description

BASRA not masked; all bits included in break condition.

All BASRA bits masked; ASID not included in break condition.

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