UPD78F0138 NEC, UPD78F0138 Datasheet - Page 168

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

168
CR01n capture value
Note Frequencies without parentheses are for 16-bit timer/event counter 00, and those in parentheses are for 16-
Note Clear OVF0n by software.
Remark n = 0:
TM0n count value
TI00n pin input
Figure 6-23. Configuration Diagram for Pulse Width Measurement with Free-Running Counter
Count clock
INTTM01n
bit timer/event counter 01.
OVF0n
Figure 6-24. Timing of Pulse Width Measurement Operation with Free-Running Counter
n = 0, 1:
f
f
X
X
/2
/2
2
8
µ
µ
(f
(f
f
X
0000H
X
X
PD780131, 780132
PD780133, 780134, 78F0134, 780136, 780138, 78F0138
/2
/2
(f
t
TI00n
X
4
6
and One Capture Register (with Both Edges Specified)
)
)
)
Note
Note
Note
0001H
CHAPTER 6 16-BIT TIMER/EVENT COUNTERS 00 AND 01
D0
(D1
D0
User’s Manual U16228EJ2V0UD
D0 + 1
D0)
16-bit timer capture/compare
register 01n (CR01n)
t
16-bit timer counter 0n
(TM0n)
D1
Internal bus
D1
D1 + 1
(10000H
FFFFH
D1 + D2)
0000H
t
INTTM01n
OVF0n
D2
(D3
D2
Note
D2)
t
D3
D3