App-270
SD1902
CH2 status
monitor
CH2 status monitor
This register stores each status of CH2.
S
(Every END
processing)
New LCPU
SD1903
CH2 external I/O
status monitor
CH2 external I/O
status monitor
• This register stores a value indicating the external I/
O signal status of CH2.
• Unused signal status is fixed at off.
• When Normal Mode is set for Operation Mode
Setting (high-speed counter function parameter), a
value according to the setting configured for
Function Input Logic Setting (high-speed counter
function parameter) is stored in the function input
status. Therefore, when a voltage is applied to the
function input terminal while Negative logic is set for
Function input logic setting, this register turns off.
• When other than A Phase/B Phase is selected for
Count Source Selection (high-speed counter function
parameter), the phase A input status and phase B
input status are fixed at off.
Number Name Meaning Explanation
Set by
(When Set)
Corres-
ponding
ACPU
D9
Corres-
ponding
CPU
b2 b1 b0b3b4b8 b5b15
0
0/10/10/10/1
0/1 0/1
b6
0/1
b7
0/1
to
Addition/subtraction
0: Addition
1: Subtraction
Underflow detection flag
0: Not detected
1: Detected
Overflow detection flag
0: Not detected
1: Detected
Sampling flag
0: Not operating
1: Operating
Frequency
measurement flag
0: Not operating
1: Operati
ng
Rotation speed
measurement flag
0: Not operating
1: Operating
Pulse measurement flag
0: Not operating
1: Operating
PWM output flag
0: Not operating
1: Operating
Fixed to 0.
b2 b1 b0b3b4b7 b5b15
0
0/10/10/10/1
0/1 0/1
b6
0/1
to
Phase Z input
status
0: OFF
1: ON
Function input
status
0: OFF
1: ON
Latch counter
input status
0: OFF
1: ON
Phase A input
status
0: OFF
1: ON
Phase B input
status
0: OFF
1: ON
Coincidence
output No.1
0: OFF
1: ON
Coincidence
output N
o.2
0: OFF
1: ON
Fixed to 0.
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