COP8SA-DM National Semiconductor, COP8SA-DM Datasheet - Page 96
COP8SA-DM
Manufacturer Part Number
COP8SA-DM
Description
MODULE DEBUGGING FOR COP8SA
Manufacturer
National Semiconductor
Datasheet
1.DM-COP820D.pdf
(254 pages)
Specifications of COP8SA-DM
Module/board Type
Debugger Module
For Use With/related Products
Cop 8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*COP8SA-DM
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distance of the jump from the current program memory location. The distance of the
jump can range from –31 to +32. A JP+1 instruction is not allowed. The programmer
should use a NOP instead.
Jump Absolute. In this 2-byte instruction, 12 bits of the instruction opcode specify the
new contents of the Program Counter. The upper three bits of the Program Counter
remain unchanged, restricting the new Program Counter address to the same 4-Kbyte
address space as the current instruction. (This restriction is relevant only in devices
using more than one 4-Kbyte program memory space.)
Jump Absolute Long. In this 3-byte instruction, 15 bits of the instruction opcode
specify the new contents of the Program Counter.
2-58
Example:
Example
Example:
COP8SAx7 MICROCONTROLLER
Jump Absolute
JMP 0125
Jump Relative
JP 0A
Jump Absolute Long
JMP 03625
Reg/Memory
PCU
PCL
Reg
PCU
PCL
Reg
PCU
PCL
Contents
02 Hex
05 Hex
Before
Contents
0C Hex
77 Hex
Before
Contents
42 Hex
36 Hex
Before
Contents
0F Hex
02 Hex
After
Contents
01 Hex
25 Hex
After
Contents
36 Hex
25 Hex
After
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