UPD78F9418AGK-9EU Renesas Electronics America, UPD78F9418AGK-9EU Datasheet - Page 130

• Manufacturer Part Number: UPD78F9418AGK-9EU
• Manufacturer: Renesas Electronics America

Specifications of UPD78F9418AGK-9EU

• Lead Free Status / Rohs Status: Supplier Unconfirmed

7.5 Cautions on Using 8-Bit Timer/Event Counters 00 to 02
128
(1)
(2)
Interrupt request flag
TM00, TM01, TM02
Error on starting timer
An error of up to 1 clock occurs after the timer has been started until a match signal is generated. This is
because 8-bit timer counters 00, 01, and 02 (TM00, TM01, and TM02) are started asynchronous to the count
pulse.
Setting of 8-bit compare register
8-bit compare registers 00, 01, and 02 (CR00, CR01, and CR02) can be set to 00H.
Therefore, one pulse can be counted when an 8-bit timer/event counter operates as an event counter.
TI0, TI1 input
CR00, CR01
TM00, TM01
Count pulse
count value
count value
Figure 7-12. Start Timing of 8-Bit Timer Counters 00, 01, and 02
Timer starts
Figure 7-13. External Event Counter Operation Timing
CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 00 TO 02
00H
User’s Manual U13952EJ3V1UD
01H
00H
00H
02H
00H
03H
00H
04H
00H