DM-COP8/44P National Semiconductor, DM-COP8/44P Datasheet - Page 145
DM-COP8/44P
Manufacturer Part Number
DM-COP8/44P
Description
CABLE FOR DEBUG MODULE 44-PLCC
Manufacturer
National Semiconductor
Datasheet
1.DM-COP820D.pdf
(254 pages)
Specifications of DM-COP8/44P
Accessory Type
44-PLCC Target Cable
For Use With/related Products
MetaLink Debug Module
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*DM-COP8/44P
- Current page: 145 of 254
- Download datasheet (2Mb)
Syntax:
Description:
Operation:
SUBC A,[B]
SUBC A,#
SUBC A,MD
Instruction
a)SUBC A,[B]
b)SUBC A,#
c)SUBC A,MD
The result is placed back in the accumulator, and the Carry flag is either
reset or set, depending on the presence or absence of a borrow from the
result. Similarly, the Half Carry flag is either reset or set, depending on
the presence or absence of a borrow from the low-order nibble.
This instruction is implemented by adding the one's complement of the
subtrahend to the accumulator and then incrementing the result. Con-
sequently, the borrow is the equivalent of the absence of carry and vice
versa. Similarly, the half carry is the equivalent of the absence of half
borrow and vice versa. A previous borrow (absence of previous carry) will
inhibit the incrementation of the result.
A <- A + VALUE + C
C <- ABSENCE OF BYTE BORROW
HC <- ABSENCE OF LOW NIBBLE HALF BORROW
Register Indirect (B Pointer)
Immediate
Memory Direct
a) The contents of the data memory location referenced by the B
b) The immediate value found in the second byte of the instruction
c) The contents of the data memory location referenced by the ad-
Addressing Mode
pointer are subtracted from the contents of the accumulator, and
the result is simultaneously decremented if the Carry flag is
found previously reset.
is subtracted from the contents of the accumulator, and the result
is simultaneously decremented if the Carry flag is found previ-
ously reset.
dress in the second byte of the instruction are subtracted from
the contents of the accumulator, and the result is simultaneously
decremented if the Carry flag is found previously reset.
Instruction
Cycles
COP8SAx7 MICROCONTROLLER
1
2
4
Bytes Hex Op Code
1
2
3
BD/MA/81
91/Imm.#
81
2-107
Related parts for DM-COP8/44P
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
CABLE FOR DEBUG MODULE 20-DIP
Manufacturer:
National Semiconductor
Datasheet:
Part Number:
Description:
CABLE FOR DEBUG MODULE 28-DIP
Manufacturer:
National Semiconductor
Datasheet:
Part Number:
Description:
SWITCH ROCKER DPDT BLK
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
SWITCH ROCKER POWER DPST 10A QC
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
SWITCH PWR ROCKER DPST SNAP-IN
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
SWITCH ROCKER DPST SNAP-IN QC
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
SWITCH ROCKER SPST ILUM 10A/125V
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
SWITCH ROCKER DPDT W/MRK QC
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
SWITCH ROCKER POWER DPST 3A QC
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
SWITCH ROCKER ILLUM 10A GRN
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
SWITCH ROCKER DPST SNAP-IN QC
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
SWITCH ROCKER POWER DPST 3A QC
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
MINI ROCKER DPDT BLK
Manufacturer:
C&K Components
Datasheet:
Part Number:
Description:
SWITCH ROCKER POWER SPST 3A QC
Manufacturer:
C&K Components
Datasheet: