105
CHAPTER 6 16-BIT TIMER/EVENT COUNTER
Preliminary User’s Manual U13420EJ2V0UM00
Figure 6-1. 16-Bit Timer/Event Counter Block Diagram
(1) Interval timer
TM0 generates interrupt request at the preset time interval.
(2) PPG output
TM0 can output a square wave whose frequency and output pulse can be set freely.
(3) Pulse width measurement
TM0 can measure the pulse width of an externally input signal.
(4) External event counter
TM0 can measure the number of pulses of an externally input signal.
(5) Square-wave output
TM0 can output a square wave with any selected frequency.
(6) One-shot pulse output
TM0 is able to output one-shot pulse which can set any width of output pulse.
Internal bus
Capture/compare control
register 0 (CRC0)
TI01/P21
f
X
f
X
/2
2
f
X
/2
6
f
X
/2
3
TI00/TO0/P20
Prescaler mode
register 0 (PRM0)
2
PRM01PRM00
CRC02
16-bit timer capture/
compare register 01 (CR01)
Coincidence
Coincidence
16-bit timer/counter 0
(TM0)
Clear
Noise
elimi-
nation
circuit
CRC02 CRC01 CRC00
INTTM00
TO0/TI00/
P20
INTTM01
16-bit timer output control
register 0 (TOC0)
16-bit timer mode
control register 0
(TMC0)
Internal bus
TMC03 TMC02 TMC01 OVF0
OSPT OSPE TOC04 LVS0 LVR0 TOC01 TOE0
Selector
16-bit timer capture/
compare register 00 (CR00)
Selector
Selector
Selector
Noise
elimi-
nation
circuit
Noise
elimi-
nation
circuit
Output
control
circuit
Содержание mPD780065 Series
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