UPD78F9500MA-CAC-A Datasheet, PDF (115/342 Pages) Renesas Technology Corp – 8-Bit Single-Chip Microcontrollers

CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00 (μPD78F920x ONLY)
Figure 6-26. Control Register Settings for Pulse Width Measurement by Means of Restart
(with Rising Edge Specified) (2/2)
(b) Prescaler mode register 00 (PRM00)
ES110 ES100 ES010 ES000 3
PRM00 0/1 0/1 0
1
0
2 PRM001 PRM000
0 0/1 0/1
Selects count clock (setting “11” is prohibited).
Specifies rising edge for pulse width detection.
Setting invalid (setting “10” is prohibited.)
(c) 16-bit timer mode control register 00 (TMC00)
7
6
5
4 TMC003 TMC002 TMC001 OVF00
TMC00 0
0
0
0
1
0 0/1 0
Clears and starts at valid edge of TI000 pin.
Figure 6-27. Timing of Pulse Width Measurement Operation by Means of Restart
(with Rising Edge Specified)
t
Count clock
TM00 count value
TI000 pin input
CR010 capture value
CR000 capture value
INTTM010
0000H 0001H
D0 0000H 0001H D1
D2 0000H 0001H
D0
D2
D1
(D1 + 1) × t
(D2 + 1) × t
User’s Manual U18172EJ3V0UD
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