COP8SA-DM National Semiconductor, COP8SA-DM Datasheet - Page 137

• Manufacturer Part Number: COP8SA-DM
• Description: MODULE DEBUGGING FOR COP8SA
• Manufacturer: National Semiconductor

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

Syntax:
Description:
Operation:
Instruction
RET
RET
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), after which SP is again incremented. Next, the contents of
the data memory location referenced by SP are transferred to PCL (Low-
er 8 bits of PC). The return address has now been retrieved from the soft-
ware stack in data memory RAM. The program now jumps to the
program memory location accessed by PC.
PCU <- [SP + 1]
PCL <- [SP + 2]
[SP + 2] : SET UP FOR NEXT STACK REFERENCE
Implicit
Addressing Mode
Instruction
Cycles
COP8SAx7 MICROCONTROLLER
5
Bytes Hex Op Code
1
8E
2-99