SH7125_08 Datasheet, PDF (146/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 7 User Break Controller (UBC)
Initial
Bit
Bit Name Value R/W Description
5, 4
IDB[1:0] 00
R/W Instruction Fetch/Data Access Select B
Select the instruction fetch cycle or data access cycle
as the bus cycle of the channel B break condition.
00: Condition comparison is not performed
01: The break condition is the instruction fetch cycle
10: The break condition is the data access cycle
11: The break condition is the instruction fetch cycle or
data access cycle
3, 2
RWB[1:0] 00
R/W Read/Write Select B
Select the read cycle or write cycle as the bus cycle of
the channel B break condition.
00: Condition comparison is not performed
01: The break condition is the read cycle
10: The break condition is the write cycle
11: The break condition is the read cycle or write cycle
1, 0
SZB[1:0] 0
R/W Operand Size Select B
Select the operand size of the bus cycle for the
channel B break condition.
00: The break condition does not include operand size
01: The break condition is byte access
10: The break condition is word access
11: The break condition is longword access
Note: When specifying the operand size, specify the
size which matches the address boundary.
[Legend]
x: Don't care.
Rev. 4.00 Jul. 25, 2008 Page 126 of 750
REJ09B0243-0400