
Chapter 2. Functions
2-15
(b) The second word of a 2-word instruction
100H
101H
102H
The address 103H never
produces an address break.
103H
Break address
NOP
LJMP 4324H
NOP
_______________________________________________________________________________________________________________________________
n
Note 6
n
_______________________________________________________________________________________________________________
Some break types support bit masks for extending data or address matches.
(a) Data match:
Specifying a data memory address of 200H, a comparison value of 4H, and a mask of 0111B
produces a match whenever 4H, 0CH is written to data address 200H.
(b) Address match:
Specifying a RAM address of 120H and a mask of 0FFF0H produces a match for all
addresses from 120H to 12FH (among others).
_______________________________________________________________________________________________________________________________
n
Note 7
n
_______________________________________________________________________________________________________________
Specifying a code memory address produces data matching for the instruction at that address.
In the following example, only the first three specifications produce data matches.
MOV [HL], A
MOV [XY], A
MOV [XY], #5
MOV [XY+], #5
Address for data match
Address for data match
Address for data match
(4)
(3)
(2)
(1)
Address not for data match
_______________________________________________________________________________________________________________________________
Summary of Contents for Dr.63514
Page 4: ...Table of Contents...
Page 7: ...Preface...
Page 15: ...Chapter 1 Overview...
Page 22: ...Chapter 2 Functions...
Page 69: ...Chapter 3 Setting Up and Starting Up...
Page 76: ...Chapter 4 Additional Usage Notes...
Page 88: ...Appendices...
Page 94: ...Appendices A 7 black brown red orange yellow green blue purple Figure A 4 Probe cable layout...