UPD78F9418AGK-9EU Renesas Electronics America, UPD78F9418AGK-9EU Datasheet - Page 131

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

Specifications of UPD78F9418AGK-9EU

• Lead Free Status / Rohs Status: Supplier Unconfirmed

8.1 Functions of Watch Timer
The watch timer has the following functions.
• Watch timer
• Interval timer
The watch and interval timers can be used at the same time.
Figure 8-1 is a block diagram of the watch timer.
f
X
/2
f
XT
7
f
W
2
f
W
4
f
2
W
9-bit prescaler
5
Figure 8-1. Block Diagram of Watch Timer
f
2
W
6
CHAPTER 8 WATCH TIMER
Clear
f
2
W
7
User’s Manual U13952EJ3V1UD
2
f
W
8
Watch timer mode
control register (WTM)
WTM7 WTM6 WTM5 WTM4 WTM1 WTM0
2
f
W
Internal bus
9
5-bit counter
Clear
INTWT
INTWTI
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