UPD78F0535GB(T)-UEU-A NEC, UPD78F0535GB(T)-UEU-A Datasheet - Page 294
UPD78F0535GB(T)-UEU-A
Manufacturer Part Number
UPD78F0535GB(T)-UEU-A
Description
8BIT MCU, 60K FLASH, 3KB RAM, LQFP
Manufacturer
NEC
Datasheet
1.UPD78F0535GBT-UEU-A.pdf
(773 pages)
Specifications of UPD78F0535GB(T)-UEU-A
Controller Family/series
UPD78
No. Of I/o's
55
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
60KB
Oscillator Type
External, Internal
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10.1 Functions of Watch Timer
294
The watch timer has the following functions.
• Watch timer
• Interval timer
The watch timer and the interval timer can be used simultaneously.
Figure 10-1 shows the watch timer block diagram.
Remark
f
PRS
f
SUB
/2
7
f
f
f
f
PRS
SUB
W
WX
:
: f
: Peripheral hardware clock frequency
: Subsystem clock frequency
f
W
Watch timer clock frequency (f
W
or f
f
W
/2
W
4
/2
f
W
9
/2
11-bit prescaler
5
f
W
Figure 10-1. Block Diagram of Watch Timer
/2
6
f
WTM7
W
/2
CHAPTER 10 WATCH TIMER
7
Clear
f
W
/2
User’s Manual U17260EJ6V0UD
8
WTM6
f
W
/2
10
PRS
f
W
Internal bus
/2
/2
11
7
f
WTM5
W
or f
/2
9
SUB
)
WTM4
f
WX
5-bit counter
WTM3
Watch timer operation
mode register (WTM)
Clear
WTM2
f
f
WX
WX
WTM1
/2
/2
4
5
WTM0
INTWT
INTWTI
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