upd78f0114hgb-8es-a Renesas Electronics Corporation., upd78f0114hgb-8es-a Datasheet - Page 150

• Manufacturer Part Number: upd78f0114hgb-8es-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

150
Remark 0/1: Setting 0 or 1 allows another function to be used simultaneously with the external event counter.
Note OVF00 is set to 1 only when CR000 is set to FFFFH.
Caution When reading the external event counter count value, TM00 should be read.
PRM00
TM00 count value
Valid edge of TI000 pin
TI000 pin input
INTTM000
ES101
0/1
Figure 6-28. External Event Counter Operation Timing (with Rising Edge Specified)
CR000
See the description of the respective control registers for details.
ES100
0/1
Figure 6-26. Control Register Settings in External Event Counter Mode
f
X
0000H 0001H 0002H 0003H 0004H 0005H
ES001
Figure 6-27. Configuration Diagram of External Event Counter
0
Noise eliminator
ES000
1
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
(c) Prescaler mode register 00 (PRM00)
3
0
(with Rising Edge Specified) (2/2)
User’s Manual U16961EJ4V0UD
2
0
N
PRM001
1
16-bit timer counter 00 (TM00)
PRM000
16-bit timer capture/compare
register 000 (CR000)
1
Selects external clock.
Specifies rising edge for pulse width detection.
Setting invalid (setting “10” is prohibited.)
Internal bus
N
Match
1
Clear
N
0000H 0001H 0002H 0003H
OVF00
Note
INTTM000