COP8SA-DM National Semiconductor, COP8SA-DM Datasheet - Page 139
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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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
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