M30260T2-CPE-GP Renesas Electronics America, M30260T2-CPE-GP Datasheet - Page 62
M30260T2-CPE-GP
Manufacturer Part Number
M30260T2-CPE-GP
Description
DEV COMPACT EMULATOR M16C/26A,28
Manufacturer
Renesas Electronics America
Type
In Circuit Debuggerr
Datasheet
1.M30290T2-CPE.pdf
(88 pages)
Specifications of M30260T2-CPE-GP
Contents
Compact Emulator, IDE, Assembler and Linker
For Use With/related Products
M16C/26A
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 62 of 88
- Download datasheet (2Mb)
M30290T2-CPE User’s Manual
2. Trace window (bus display)
REJ10J0494-0200 Rev.2.00 July 16, 2005
Disassemble display
Source display
Bus display
Explanation of the trace window (bus
display)
The following explains the displayed contents, from left to
right.
- Address
- Data
- BUS
- BHE*
- BIU
- R/W
- RWT
- CPU
Shows the status of the address bus.
Shows the status of the data bus.
Shows the width of the external data bus. In the present
emulator, only “16b” for 16 bits wide bus is displayed.
Shows the status (0 or 1) of the BHE (Byte High Enable)
signal. If this signal = 0, the odd-address data is valid.
Shows the status between the BIU (Bus Interface Unit)
and memory or I/O.
Symbol Status
–
DMA
INT
IB
DB
IW
DW
Shows the status of the data bus.
Displayed as “R” for Read, “W” for Write, and “–” for
no access.
This is the signal to indicate a valid bus cycle. When
valid, RWT = 0. The Address, Data, and the BIU signals
are effective when this signal is 0.
Shows the status between the CPU and BIU (Bus
Interface Unit).
Symbol Status
–
CB
RB
QC
CW
RW
3. Usage (How to Use the Emulator Debugger)
Non-active
Data access by other than the CPU, e.g., by
DMA
Interrupt acknowledge cycle start
Instruction code read by the CPU (in bytes)
Data access by the CPU (in bytes)
Instruction code read by the CPU (in words)
Data access by the CPU (in words)
Non-active
Op-code read (in bytes)
Operand read (in bytes)
Instruction queue buffer clear
Op-code read (in words)
Operand read (in words)
Page 60 of 86
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