Fujitsu MB91460 SERIES FR60 User Manual page 795

• bit9-7: Operation mode selection
Reload trigger when internal clock is selected
MOD2 MOD1
0 0
0 0
0 1
0 1
When the selected reload trigger is input, the value of reload register TMRLR is loaded to the down counter and the
count operation is started.
Count trigger when external event is selected
MOD2 MOD1
0 0
0 0
0 1
0 1
Counts an external event using the selected count trigger.
Always set MOD2 to "0". The read value is the written value.
• bit6: Undefined
Writing has no effect on the operation. The read value is "0".
• bit5: Output level setting
OUTL One-shot mode (RELD="0")
0 During count "H" square wave
1 During count "L" square wave
• During one-shot mode, a pulse is output during the count, and during reload mode a toggle is output.
• For output level setting bit "0" and "1" the output level is reversed.
• bit4: Enable reload
RELD
0 One-shot mode (reload disabled)
1 Reload mode (reload enabled)
• In reload mode, down counter underflow (0000H -> FFFFH) causes the value set to reload register
(TMRLR) to be loaded to the down counter, and the count operation continues.
• In one-shot mode, down counter underflow (0000H -> FFFFH) causes the count operation to stop.
• bit3: Enable timer interrupt requests
INTE
0 Disable interrupt requests
1 Enable interrupt requests
When timer interrupt requests are enabled, the timer interrupt request flag (UF) becomes "1" and interrupt requests are
generated.
• bit2: Timer interrupt request flag
UF
0 Underflow not present
1 Underflow present
Upon down counter underflow (0000H -> FFFFH) generation, the timer interrupt request flag becomes "1". If the
MOD0
0 Software trigger
1 External trigger (rising edge)
0 External trigger (falling edge)
1 External trigger (both edges)
MOD0
0 --------
1 External trigger (rising edge)
0 External trigger (falling edge)
1 External trigger (both edges)
Enable reload
Enable timer interrupt requests
Timer interrupt request flag
When read
Reload trigger
Count trigger
Reload mode (RELD="1")
During count start "L" toggle output
During count start "H" toggle output
When write
Clear interrupt requests
No effect
Chapter 38 Reload Timer
4.Registers
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