m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 395
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m37905
Manufacturer Part Number
m37905
Description
Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M37905.pdf
(565 pages)
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interrupt request occurs.
DEBUG FUNCTION
17.4 Out-of-address-area detection mode
17.4 Out-of-address-area detection mode
When the contents of PG and PC go out of the range of the specified area, an address matching detection
Fig. 17.4.1 Initial setting example for registers relevant to out-of-address-area detection mode
17-10
17.4.1 Setting procedure for out-of-address-area detection mode
Figure 17.4.1 shows an initial setting example for registers relevant to the out-of-address-area detection
mode.
Setting of address compare registers
Selection of detect condition
Processing for setting of address compare registers
b23
b23
Disables interrupts.
b7
b7
0
0
0 0
The interrupt disable flag (I) is set to “1.”
1 1
1
b
b
0 1
b0
b0
0
0
Debug control register 0 (Address 66
Selection of out-of-address-area detection
Detect enable bit
Debug control register 1 (Address 67
Address compare register access enable bit
(Note 1)
The start address of the programming
area is set here.
The last address of the programming
area is set here.
Address compare register 0
Address compare register 1
1 : Enabled.
(Addresses 6A
(Addresses 6D
0 : Detection disabled.
16
16
to 68
to 6B
7905 Group User’s Manual Rev.1.0
16
16
)
)
16
16
)
)
Notes 1: Be sure to set this bit to “1” immediately before reading from or
Set the detect enable bit to “1.”
b7
b7
2: This processing is unnecessary when no maskable interrupt is
writing to the address compare registers 0, 1. Then, be sure to
clear this bit to “0” immediately after this reading or writing.
used.
1
Clear the interrupt disable flag (I) to “0” (Note 2).
0
Detection starts.
b0
b0
Address compare register access enable bit
(Note 1)
Debug control register 0 (Address 66
Detect enable bit
Debug control register 1 (Address 67
0 : Disabled.
1 : Detection enabled.
16
16
)
)
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