HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 115

• Manufacturer Part Number: HD6417034B
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Bits 5 and 4—Instruction Fetch/Data Access Select (ID1, ID0): ID1 and ID0 select whether to
break on instruction fetch and/or data access bus cycles.
Bit 5: ID1
0
1
Bits 3 and 2—Read/Write Select (RW1, RW0): RW1 and RW0 select whether to break on read
and/or write access cycles.
Bit 3: RW1 Bit 2: RW0 Description
0
1
Bits 1 and 0 —Operand Size Select (SZ1, SZ0): SZ1 and SZ0 select the bus cycle operand size
as a break condition.
Bit 1: SZ1
0
1
Note: When setting a break on an instruction fetch, clear the SZ0 bit to 0. All instructions will be
considered to be accessed as words (even those instructions in on-chip memory for which
two instructions can be fetched simultaneously in a single bus cycle). Instruction fetch is by
word access and CPU/DMAC data access is by the specified operand size. The access is
not determined by the bus width of the space being accessed.
Bit 4: ID0
0
1
0
1
0
1
0
1
Bit 0: SZ0
0
1
0
1
Description
No break interrupt occurs
Break only on instruction fetch cycles
Break only on data access cycles
Break on both instruction fetch and data access cycles
No break interrupt occurs
Break only on read cycles
Break only on write cycles
Break on both read and write cycles
Description
Operand size is not a break condition
Break on byte access
Break on word access
Break on longword access
Rev. 7.00 Jan 31, 2006 page 89 of 658
Section 6 User Break Controller (UBC)
REJ09B0272-0700
(Initial value)
(Initial value)
(Initial value)