upd78f0148m1gka1-9eu Renesas Electronics Corporation., upd78f0148m1gka1-9eu Datasheet - Page 217
upd78f0148m1gka1-9eu
Manufacturer Part Number
upd78f0148m1gka1-9eu
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0148M1GKA1-9EU.pdf
(668 pages)
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(2) Operation with CR5n changed
Count clock
INTTM5n
Caution When reading from CR5n between <1> and <2> in Figure 8-15, the value read differs from the
Count clock
INTTM5n
TCE5n
TM5n
CR5n
TO5n
TCE5n
TM5n
CR5n
TO5n
H
N N + 1 N + 2
actual value (read value: M, actual value of CR5n: N).
t
H
N N + 1 N + 2
t
N
(a) CR5n value is changed from N to M before clock rising edge of FFH
N
(b) CR5n value is changed from N to M after clock rising edge of FFH
→ Value is transferred to CR5n at overflow immediately after change.
<1> CR5n change (N → M)
→ Value is transferred to CR5n at second overflow.
<1> CR5n change (N → M)
CHAPTER 8 8-BIT TIMER/EVENT COUNTERS 50 AND 51
Figure 8-15. Timing of Operation with CR5n Changed
FFH 00H 01H
FFH 00H 01H
<2>
02H
N
02H
User’s Manual U15947EJ3V1UD
M
N N + 1 N + 2
M M + 1 M + 2
FFH 00H 01H 02H
<2>
FFH 00H 01H 02H
M
M M + 1 M + 2
M M + 1 M + 2
217
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