COP8SA-DM National Semiconductor, COP8SA-DM Datasheet - Page 100
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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The conditional instructions test a condition. If the condition is true, the next instruction
is executed in the normal manner; if the condition is false, the next instruction is skipped.
No-Operation Instruction
The no-operation instruction does nothing, except to occupy space in the program
memory and time in execution.
NOTE:
2.18 DETAILED FUNCTIONAL DESCRIPTIONS OF INSTRUCTIONS
The instruction set contains 58 different instructions. Most of the arithmetic,
comparison, and data transfer (load, exchange) instructions operate with three different
addressing modes (register indirect with B pointer, memory direct, and immediate).
These various addressing modes increase the instruction total to 87. The detailed
instruction descriptions contain the following:
2-62
If Equal (IFEQ)
If Not Equal (IFNE)
If Greater Than (IFGT)
If Carry (IFC)
If Not Carry (IFNC)
If Bit (IFBIT)
If B Pointer Not Equal (IFBNE)
And Skip if Zero (ANDSZ)
Decrement Register and Skip if Zero (DRSZ)
No-Operation (NOP)
• Opcode mnemonic
• Instruction syntax with operand field descriptor
• Full instruction description
• Register level instruction description
• Number of instruction cycles (each cycle equal to one microsecond at full clock speed)
• Number of bytes (1, 2, or 3) in instruction
• Hexadecimal code for the instruction bytes
COP8SAx7 MICROCONTROLLER
The VIS is a special case of the Indirect Transfer of Control addressing
mode, where the double byte vector associated with the interrupt is trans-
ferred from adjacent addresses in the program memory into the program
counter (PC) in order to jump to the associated interrupt service routine.
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