DM-COP8/28D National Semiconductor, DM-COP8/28D Datasheet - Page 96

• Manufacturer Part Number: DM-COP8/28D
• Description: CABLE FOR DEBUG MODULE 28-DIP
• Manufacturer: National Semiconductor

Specifications of DM-COP8/28D

• Accessory Type: 28-DIP Target Cable
• For Use With/related Products: MetaLink Debug Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *DM-COP8/28D

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