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CHAPTER 7 8-BIT TIMER/EVENT COUNTER
Preliminary User’s Manual U13420EJ2V0UM00
Figure 7-12. 16-Bit Resolution Cascade Connection Mode
7.5 8-Bit Timer/Event Counter Cautions
(1) Timer start errors
An error with the maximum of one clock may occur concerning the time required for a match signal to be generated
after timer start. This is because 8-bit counter 5n (TM5n) is started asynchronously with the count pulse.
Figure 7-13. 8-Bit Counter Start Timing
n = 0, 1
Count clock
TM50
TM51
CR50
CR51
TCE50
TCE51
INTTM50
TO50
Operation permit
Count start
Interval time
00H
01H
N N+1
FFH 00H
FFH 00H
FFH 00H 01H
N 00H 01H
A 00H
00H
01H
02H
M–1 M
00H
B 00H
N
M
Interrupt request
generation
Level reverse
Counter clear
Operation
stop
Count pulse
TM5n count
00H
01H
02H
03H
04H
Timer start
Содержание mPD780065 Series
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