DM-COP8/28D National Semiconductor, DM-COP8/28D Datasheet - Page 139

• 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

Syntax:
Description:
Operation:
Instruction
RETSK
RETSK
The Stack Pointer (SP) is first incremented. The contents of the data
memory location referenced by SP are then transferred to PCU (Upper
7 bits of PC), and SP is again incremented. Next, the contents of the data
memory location referenced by SP are transferred to PCL (Lower 8 bits
of PC). The return address has now been retrieved from the software
stack in data memory RAM. The program now jumps to and then skips
the instruction in the program memory location accessed by PC.
PCU <- [SP + 1]
PCL <- [SP + 2]
[SP + 2] : SET UP FOR NEXT STACK REFERENCE
SKIP NEXT INSTRUCTION
Implicit
Addressing Mode
Instruction
Cycles
COP8SAx7 MICROCONTROLLER
5
Bytes Hex Op Code
1
8D
2-101