UPD78F0138HGK-9ET-A Renesas Electronics America, UPD78F0138HGK-9ET-A Datasheet - Page 232
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UPD78F0138HGK-9ET-A
Manufacturer Part Number
UPD78F0138HGK-9ET-A
Description
MCU 8BIT 60K FLASH 64TQFP
Manufacturer
Renesas Electronics America
Series
78K0/Kx1+r
Datasheet
1.UPD78F0138HGK-9ET-A.pdf
(568 pages)
Specifications of UPD78F0138HGK-9ET-A
Core Processor
78K/0
Core Size
8-Bit
Speed
16MHz
Connectivity
3-Wire SIO, LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
42
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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9.4.2 Interval timer operation
the preset count value.
(WTM).
stops.
230
WTM6
The watch timer operates as interval timer which generates interrupt requests (INTWTI) repeatedly at an interval of
The interval time can be selected with bits 4 to 6 (WTM4 to WTM6) of the watch timer operation mode register
When bit 0 (WTM0) of the WTM is set to 1, the count operation starts. When this bit is set to 0, the count operation
Remark
Remark
0
0
0
0
1
1
1
1
Count clock
Watch timer
interrupt INTWT
Interval timer
interrupt INTWTI
WTM5
0
0
1
1
0
0
1
1
f
f
f
f
n:
Figures in parentheses are for operation with f
W
W
X
XT
: High-speed system clock oscillation frequency
: Watch timer clock frequency
: Watch timer clock frequency
: Subsystem clock oscillation frequency
5-bit counter
The number of times of interval timer operations
WTM4
0
1
0
1
0
1
0
1
Figure 9-3. Operation Timing of Watch Timer/Interval Timer
2
2
2
2
2
2
2
2
4
5
6
7
8
9
10
11
/f
/f
/f
/f
/f
/f
/f
/f
W
W
W
W
W
W
W
W
Start
Interval Time
0H
Table 9-5. Interval Timer Interval Time
Interrupt time of watch timer (0.5 s)
Interval time
(T)
CHAPTER 9 WATCH TIMER
User’s Manual U16899EJ3V0UD
n
T
488 s
977 s
1.95 ms
3.91 ms
7.81 ms
15.6 ms
31.3 ms
62.5 ms
f
W
XT
= 32.768 kHz (WTM7 = 1, WTM3, WTM2 = 0, 0)
= 32.768 kHz (WTM7 = 1)
When Operated at
Overflow
Interrupt time of watch timer (0.5 s)
T
n
205 s
410 s
820 s
1.64 ms
3.28 ms
6.55 ms
13.1 ms
26.2 ms
T
f
X
= 10 MHz (WTM7 = 0)
When Operated at
Overflow
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