UPD784938 Datasheet, PDF (354/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 11 TIMER/EVENT COUNTER 2
Figure 11-43. Control Register Settings for Pulse Width Measurement
(a) Prescaler mode register 1 (PRM1)
7
6
5
4
3
2
1
0
PRM1 PRS23 PRS22 PRS21 PRS20 0
×
×
×
Count clock specification
(x/fXX ; x = 4, 8, 16, 32, 64, 128, 256,
512, 1,024, or external clock)
(b) Capture/compare control register 2 (CRC2)
7
6
5
4
3
2
1
0
CRC2 0
0
0
1
0
0
0
0
TM2 clearing disabled
(c) Timer control register 1 (TMC1)
7
6
5
4
3
2
1
0
TMC1 1
0
0
0
×
×
0
0
Normal mode
Overflow flag
Count operation enabled
(d) External interrupt mode register 0 (INTM0)
7
6
5
4
3
2
1
0
INTM0 ×
×
1
1
×
×
0
×
Both rising and falling edges
specified as INTP1 input valid edges
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Preliminary User’s Manual U13987EJ1V0UM00