UPD78F0138 NEC, UPD78F0138 Datasheet - Page 176
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UPD78F0138
Manufacturer Part Number
UPD78F0138
Description
(UPD78xxxx) 8-Bit Single-Chip Microcontrollers
Manufacturer
NEC
Datasheet
1.UPD78F0138.pdf
(558 pages)
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Note OVF0n is set to 1 only when CR00n is set to FFFFH.
Caution When reading the external event counter count value, TM0n should be read.
Remark n = 0:
TM0n count value
TI00n pin input
Valid edge of TI00n
INTTM00n
n = 0, 1:
Figure 6-33. External Event Counter Operation Timing (with Rising Edge Specified)
CR00n
f
X
µ
µ
PD780131, 780132
PD780133, 780134, 78F0134, 780136, 780138, 78F0138
0000H 0001H 0002H 0003H 0004H 0005H
Figure 6-32. Configuration Diagram of External Event Counter
CHAPTER 6 16-BIT TIMER/EVENT COUNTERS 00 AND 01
Noise eliminator
User’s Manual U16228EJ2V0UD
N
16-bit timer counter 0n (TM0n)
16-bit timer capture/compare
register 00n (CR00n)
Internal bus
Match
N – 1
Clear
N
0000H 0001H 0002H 0003H
OVF0n
Note
INTTM00n
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