SuperH (SH) 64-bit RISC Series SH-5 System Architecture, Volume ...

PRELIMINARY DATA
WP channel type BRK 137
The BRK channel is not a true WP channel - it has no generic PRE and ACTION
registers, and instead has some implicit behavior. BRK is manifested as a WP
channel in order to make its exception state available in a uniform manner (see
Section 1.7: Reset, panic and debug events on page 73).
1.10.1 Match registers
There are no associated PRE or MATCH registers as BRK watchpoints cannot be
filtered.
There is no associated ACTION register as the BRK watchpoint implicitly takes a
debug exception.
1.10.2 Event specifics
Source CPU
Reason: Execution of a BRK instruction, execution of a single-stepped instruction,
or a forced debug interrupt.
D R A FT
05-SA-10003 v1.0
SuperH, Inc.
SH-5 System Architecture, Volume 3: Debug