m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 391

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

request occurs.
DEBUG FUNCTION
17.3 Address matching detection mode
17.3 Address matching detection mode
When the contents of PG and PC match with the specified address, an address matching detection interrupt
Fig. 17.3.1 Initial setting example for registers relevant to address matching detection mode
17-6
17.3.1 Setting procedure for address matching detection mode
Figure 17.3.1 shows an initial setting example for registers relevant to the address matching detection
mode.
Setting of address compare registers
b23
Disables interrupts.
Selection of detect condition
Processing for setting of address compare registers
b7
b7
0
0
0 0
The interrupt disable flag (I) is set to “1.”
1 1
b
b0
b0
0
Detect enable bit
Address compare register access enable bit
(Note 1)
Detect condition select bits
The address to be detected is set here.
Debug control register 0 (Address 66
Debug control register 1 (Address 67
Address compare register 0
Address compare register 1
b2
1 : Enabled.
0 0 1 : Address matching detection 0
0 1 0 : Address matching detection 1
0 1 1 : Address matching detection 2
0 : Detection disabled.
(Addresses 6A
(Addresses 6D
b1 b0
16
16
to 68
7905 Group User’s Manual Rev.1.0
to 6B
16
16
)
)
16
16
)
)
Set the detect enable bit to “1.”
b7
b7
Notes 1: Be sure to set this bit to “1” immediately before reading from or
2: This processing is unnecessary when no maskable interrupt is
1
writing to the address compare registers 0, 1. Then, be sure to
clear this bit to “0” immediately after this reading or writing.
used.
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
Debug control register 1 (Address 67
Detect enable bit
0 : Disabled.
1 : Detection enabled.
16
16
)
)