Btr (16-Bit Data Specified Bit Reset) - Panasonic FP7 Series Additional Functions Manual

3.6 BTR (16-bit Data Specified Bit Reset)

 Instruction format
R0
 Operation unit (●: Available)
Operation unit
i
 List of operands
Operand Description
D Device address of target data
Bit number (device address or constant) (Settable range: 0 to 15)
n
 Available devices (●: Available)
Operand
WX WY WR WL WS SD DT
● ● ●
D
● ● ●
n
Only 16-bit deivces, 32-bit devices, and integer constants can be modified. (Real number constants and character
*1：
constants cannot be specified.)
 Outline of operation

Turns OFF (0) the [n]th bit in the area specified by [D] according to the operation unit of [i].

Other bits except the bit specified by [D] do not change.

Specify [n] within the range of U0 to U15.
 Processing
Example 1) Specifying a constant for the bit number
D: DT0, n: U4
Bit F
DT0
0
Bit F
DT0
0
BTR.US
i
bit US
●
16-bit device
LD UM
● ● ●
● ● ●
E D C B A 9
1 0 1 1 0 0
E D C B A 9
1 0 1 1 0 0
3.6 BTR (16-bit Data Specified Bit Reset)
DT1
U7
D n
SS UL
32-bit device
TS TE
WI WO
CS CE
● ●
● ● ●
8 7 6 5 4
0 0 1 1 1
8 7 6 5 4
0 0 1 1 0
SL SF
Real
Integer
number
IX K U H SF DF
● ●
3 2 1 0
0 0 0 0
3 2 1 0
0 0 0 0
DF
String
Index
modifier
*1
" "
●
●
3-11