Fujitsu F2MC-8FX Hardware Manual page 263

Table 16.5-3 Functional Description of Each Bit of 8/16-bit Composite Timer 00/01 Timer Mode Control
Register (TMCR0) (1 / 2)
Bit name
TO1:
bit7
Timer 01 output bit
TO0:
bit6
Timer 00 output bit
IIS:
bit5 Timer 00 internal
signal select bit
MOD:
bit4
16-bit mode enable bit
FE11, FE10:
bit3
Timer 01 filter function
bit2
select bits
This bit indicates the output value of timer 01. When the timer starts operation (T00CR1/
T01CR1:STA = 1), the value in the bit changes depending on the selected timer function.
• Writing to this bit has no effect on the operation.
• The value in the bit remains indeterminate during 16-bit operation when the PWM timer function
(variable-cycle mode) or input capture function has been selected.
• When the timer stops operation (T00CR1/T01CR1:STA = 0) in interval timer or PWC timer
function, this bit holds the last value.
• When the timer stops operation in PWM timer function (fixed-cycle mode), this bit holds the last
value.
• When the timer operation mode select bit (T00CR0/T01CR0: F3, F2, F1, F0) is changed with the
timer being stopped, the bit indicates the last value of timer operation if the same timer operation
has ever been performed or otherwise contains "0".
This bit indicates the output value of timer 00. When the timer starts operation (T00CR1/
T01CR1:STA = 1), the value in the bit changes depending on the selected timer function.
• Writing to this bit has no effect on the operation.
• The value in the bit remains indeterminate when the input capture function has been selected.
• When the timer stops operation (T00CR1/T01CR1:STA = 0) in interval timer, PWM timer
(variable-cycle mode), or PWC timer function, this bit holds the last value.
• When the timer stops operation in PWM timer function (fixed-cycle mode), this bit holds the last
value.
• When the timer operation mode select bit (T00CR0/T01CR0: F3, F2, F1, F0) is changed with the
timer being stopped, the bit indicates the last value of timer operation if the same timer operation
has ever been performed or otherwise contains "0".
This bit selects the signal input to timer 00 when the PWC timer or input capture function has been
selected.
Writing "1" : selects the internal signal (TII0) as the signal input for timer 00.
Writing "0" : selects the external signal (EC00) as the signal input for timer 00.
This bit selects 8-bit or 16-bit operation mode.
Writing "1" : allows timers 00 and 01 to operate as a 16-bit timer.
Writing "0" : allows timers 00 and 01 to operate as separate 8-bit timers.
• This bit is set to "0" automatically when the timer starts operation (T00CR1/T01CR1:STA=1) in
PWM timer mode (variable-cycle mode).
• Write access to this bit is nullified during timer operation (T00CR1:STA = 1 or T01CR1:STA = 1).
These bits select the filter function for the external signal (EC01) to timer 01 when the PWC timer
or input capture function has been selected.
FE11 FE10
0 0
0 1
1 0
1 1
• Write access to these bits is nullified during timer operation (T01CR1:STA = 1).
• The settings of the bits have no effect on operation when the interval timer or PWM timer function
has been selected (filter function does not operate.).
CHAPTER 16 8/16-BIT COMPOSITE TIMER
Function
Timer 01 filter function select bits
No filtering
Removing H pulse noise
Removing L pulse noise
Removing H/L pulse noise
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