HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 291
HD6417641
Manufacturer Part Number
HD6417641
Description
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
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The user break controller (UBC) provides functions that simplify program debugging. These
functions make it easy to design an effective self-monitoring debugger, enabling the chip to debug
programs without using an in-circuit emulator. Break conditions that can be set in the UBC are
instruction fetch or data read/write access, data size, data contents, address value, and stop timing
in the case of instruction fetch.
11.1
The UBC has the following features:
1. The following break comparison conditions can be set.
• Address
• Data
• Bus cycle
• Read/write
• Operand size
2. A user-designed user-break condition exception processing routine can be run.
3. In an instruction fetch cycle, it can be selected that a break is set before or after an instruction
4. Maximum repeat times for the break condition (only for channel B): 2
5. Eight pairs of branch source/destination buffers.
Number of break channels: two channels (channels A and B)
User break can be requested as either the independent or sequential condition on channels A
and B (sequential break setting: channel A and then channel B match with break conditions,
but not in the same bus cycle).
Comparison bits are maskable in 1-bit units.
One of the four address buses (logic address bus (LAB), internal address bus (IAB),
X-memory address bus (XAB), and Y-memory address bus (YAB)) can be selected.
Only on channel B, 32-bit maskable.
One of the four data buses (L-bus data (LDB), I-bus data (IDB), X-memory data bus (XDB)
and Y-memory data bus (YDB)) can be selected.
Instruction fetch or data access
Byte, word, and longword
is executed.
Features
Section 11 User Break Controller (UBC)
Rev. 4.00 Sep. 14, 2005 Page 241 of 982
Section 11 User Break Controller (UBC)
12
− 1 times.
REJ09B0023-0400
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