Fujitsu FR81S User Manual
CHAPTER 20: RELOAD TIMER
2. Features
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : RELOAD TIMER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
FUJITSU SEMICONDUCTOR CONFIDENTIAL
4
2. Features
This section explains features of the reload timer.
A 8-channel reload timer is installed in this series.
⋅ 7channels : MB91F52xB(64pin)
⋅ 8channels : MB91F52xD, MB91F52xF, MB91F52xJ, MB91F52xK, MB91F52xL
Each channel is configured as follows.
⋅ 8channels : MB91F52xD, MB91F52xF, MB91F52xJ, MB91F52xK, MB91F52xL
Each channel is configured as follows.
⋅ 16-bit down counter
×1
⋅ 16-bit reload register
×1
⋅ 16-bit reload / compare/ capture register
×1
⋅ Buffers described above
×1
⋅ 6-bit prescaler for internal count clock creation
×1
⋅ External trigger/event input (TIN)
×1
⋅ External toggle output (TOUT)
×1
⋅ Control register
×1
⋅ Count comparator
×1
This timer, equipped with the interval timer mode/event counter mode described below, can be used for the
following purposes and functions by setting the registers:
following purposes and functions by setting the registers:
⋅ Interval timer mode
⋅ Single one-shot operation
=> Single-shot Timer
⋅ Dual one-shot operation
⋅ Single reload operation
⋅ Single reload operation
=> Reload Timer
⋅ Dual reload operation
=> PPG(Programmable Pulse Generator)
⋅ Compare mode
=> Output compare, PWM(Pulse Width Modulator)
⋅ Capture mode (external trigger input/software trigger use)
=> PWC(Pulse Width Counter)
⋅ Underflow interrupt/capture interrupt
⋅ 6 types of internal clocks (peripheral clock (PCLK) divided by 2/4/8/16/32/64)
⋅ 6 types of internal clocks (peripheral clock (PCLK) divided by 2/4/8/16/32/64)
⋅ External trigger input (rising edge/falling edge/both edges)
⋅ External gate input
⋅ External gate input
⋅ Event counter mode
⋅ Single one-shot operation
⋅ Dual one-shot operation
⋅ Dual one-shot operation
⋅ Single reload operation
⋅ Dual reload operation
⋅ Compare mode
⋅ Capture mode (only software trigger)
⋅ Underflow interrupt/capture interrupt/compare interrupt
⋅ Dual reload operation
⋅ Compare mode
⋅ Capture mode (only software trigger)
⋅ Underflow interrupt/capture interrupt/compare interrupt
⋅ External event input edge detection (rising edge detection/falling edge detection/both edge detection)
⋅ Cascade mode
⋅ Use ch.0 output for ch.1 input. Use ch.1 output for ch.2 input. Use ch.2 output for ch.3 input.
⋅ Use ch.4 output for ch.5 input. Use ch.5 output for ch.6 input.
⋅ Cascade mode
⋅ Use ch.0 output for ch.1 input. Use ch.1 output for ch.2 input. Use ch.2 output for ch.3 input.
⋅ Use ch.4 output for ch.5 input. Use ch.5 output for ch.6 input.
MB91520 Series
MN705-00010-1v0-E
731