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

PRELIMINARY DATA
98 Debug module
DM.TRCTL
0x100040
Field Bits Size Volatile? Synopsis Type
DM_TRIG_
IN_MODE
[2:1] 2 — Trigger-in mode RW
Operation
When read
When written
HARD reset
Determines the state of the trigger chain-latch relative to the
DM_TRIN_N pin as follows:
Value - Description
0b00: edge triggered, a rising edge on DM_TRIN_N sets the trigger
chain-latch. The latch is only automatically cleared by a WP
channel’s action explicitly clearing it.
0b01: edge triggered, a falling edge on DM_TRIN_N sets the trigger
chain-latch. The latch is only automatically cleared by a WP
channel’s action explicitly clearing it.
0b10: continuous sampling, level ==1 on DM_TRIN_N sets
the trigger chain-latch, level == 0 on DM_TRIN_N clears the trigger
chain-latch
0b11: manual mode. The trigger chain latch will only be set or
cleared by explicit writes to the DM.CHAIN_TRIG_IN register.
Alterations attempted by WP channel’s action_chain_alter setting
have no effect.
The trigger chain-latch can be manually set or cleared by writing to
DM.CHAIN_TRIG_IN, but this is not recommended.
Returns current value
Updates value
0b11
Table 31: DM.TRCTL definition
D R A FT
SuperH, Inc.
SH-5 System Architecture, Volume 3: Debug 05-SA-10003 v1.0