2 timer control status registers (low) (tmcsr: l), Timer control status registers (low) (tmcsr: l) – FUJITSU F2MCTM-16LX User Manual
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CHAPTER 14 16-BIT RELOAD TIMER
14.3.2
Timer Control Status Registers (Low) (TMCSR: L)
The timer control status registers (Low) (TMCSR:L) enables or disable the timer
operation, check the generation of a software trigger or an underflow, enables or
disable an underflow interrupt, select the reload mode, and set the output of the TOT
pin.
■
Timer Control Status Registers (Low) (TMCSR: L)
Figure 14.3-4 Timer Control Status Registers (Low) (TMCSR: L)
∗
0 0 0 0 0 0 0 0
B
4
5
3
2
1
6
R/W R/W R/W R/W R/W R/W R/W
0
7
TMCSR2 : 000064
H
TMCSR3 : 000066
H
TRG
CNTE
UF
INTE
RELD
OUTL
OUTE
R/W
: Read/Write
: Reset value
∗
: For MOD0 (bit 7), see "14.3.1 Timer Control Status Registers (High) (TMCSR:H)".
Reset value
Address:
bit0
TRG
Software trigger bit
0
No effect
1
After reloading, starts counting
bit1
CNTE
Timer operation enable bit
0
Timer operation disabled
1
Timer operation enabled (wait start trigger)
bit2
UF
Underflow generating flag bit
Read
Write
0
No underflow
Clear UF bit
1
Underflow
No effect
bit3
INTE
Underflow interrupt enable bit
0
Underflow interrupt disable
1
Underflow interrupt enable
bit4
RELD
Reload select bit
0
One-shot mode
1
Reload mode
bit5
OUTL
TOT pin output level select bit
One-shot mode (RELD=0)
Reload mode (RELD=1)
0
High rectangular wave output
during counting
Low toggle output at starting reload timer
1
Low rectangular wave output
during counting
High toggle output at starting reload timer
bit6
OUTE
TOT pin output enable bit
Pin function
0
General-purpose I/O port
1
TOT output