595
APPENDICES
A
Appendix 3 List of Special Register Areas
SD1882
CH1 status
monitor
CH1 status
monitor
This register stores each status of CH1.
S (Every
END
processing)
New LCPU
SD1883
CH1 external
I/O status
monitor
CH1 external
I/O status
monitor
• This register stores a value indicating the external I/O
signal status of CH1.
• 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.
S (Every
END
processing)
New LCPU
SD1884
CH1
operation
mode
monitor
CH1
operation
mode
monitor
This register stores a value indicating the operation mode for
high-speed counter of CH1 set by the parameter.
• 0: Not used
• 1: Normal mode
• 2: Frequency measurement mode
• 3: Rotation speed measurement mode
• 4: Pulse measurement mode
• 5: PWM output mode
S (Every
END
processing)
New LCPU
Number Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPUD9
Corresponding
CPU
b2 b1 b0b3b4b8 b5b15
0
0/1 0/1 0/1 0/1
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: Operating
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
0/1 0/1 0/1 0/1
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 No.2
0: OFF
1: ON
Fixed to 0.