UPD78F0386GK-8EU-A Renesas Electronics America, UPD78F0386GK-8EU-A Datasheet - Page 238

• Manufacturer Part Number: UPD78F0386GK-8EU-A
• Description: MCU 96KB FLASH 5KB RAM
• Manufacturer: Renesas Electronics America
• Series: 78K0/Lx2r

Specifications of UPD78F0386GK-8EU-A

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LCD, LVD, POR, PWM, WDT
• Number Of I /o: 26
• Program Memory Size: 96KB (96K x 8)
• Program Memory Type: FLASH
• Ram Size: 5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

Remark
Remark
9.2 Configuration of Watch Timer
236
2
2
2
2
2
2
2
2
2
2
2
2
4
5
13
14
4
5
6
7
8
9
10
11
/f
/f
/f
/f
/f
/f
/f
/f
Interrupt Time
(1) Watch timer
(2) Interval timer
The watch timer includes the following hardware.
/f
/f
Interval Time
/f
/f
W
W
W
W
W
W
W
W
W
W
W
W
When the peripheral hardware clock or subsystem clock is used, interrupt request signals (INTWT) are
generated at preset intervals.
Interrupt request signals (INTWTI) are generated at preset time intervals.
f
f
f
f
f
f
PRS
SUB
W
PRS
SUB
W
:
:
: Peripheral hardware clock frequency
: Subsystem clock frequency
: Peripheral hardware clock frequency
: Subsystem clock frequency
Watch timer clock frequency (f
Watch timer clock frequency (f
488 s
977 s
0.25 s
0.5 s
488 s
977 s
1.95 ms
3.91 ms
7.81 ms
15.6 ms
31.3 ms
62.5 ms
When Operated at
When Operated at
f
f
SUB
SUB
Counter
Prescaler
Control register
= 32.768 kHz
= 32.768 kHz
Item
Table 9-1. Watch Timer Interrupt Time
Table 9-2. Interval Timer Interval Time
Table 9-3. Watch Timer Configuration
1.02 ms
2.05 ms
0.52 s
1.05 s
1.02 ms
2.05 ms
4.10 ms
8.20 ms
16.4 ms
32.8 ms
65.5 ms
131.1 ms
When Operated at
When Operated at
5 bits
11 bits
Watch timer operation mode register (WTM)
f
f
PRS
PRS
CHAPTER 9 WATCH TIMER
User’s Manual U17504EJ2V0UD
= 2 MHz
= 2 MHz
PRS
PRS
1
1
/2
/2
7
7
or f
or f
SUB
SUB
0.210 s
0.419 s
410 s
819 s
)
410 s
820 s
1.64 ms
3.28 ms
6.55 ms
13.1 ms
26.2 ms
52.4 ms
)
When Operated at
When Operated at
Configuration
f
f
PRS
PRS
= 5 MHz
= 5 MHz
205 s
410 s
0.105 s
0.210 s
205 s
410 s
820 s
1.64 ms
3.28 ms
6.55 ms
13.1 ms
26.2 ms
When Operated at
When Operated at
f
f
PRS
PRS
= 10 MHz
= 10 MHz
102 s
205 s
52.5 ms
0.105 s
102 s
205 s
410 s
820 s
1.64 ms
3.28 ms
6.55 ms
13.1 ms
When Operated at
When Operated at
f
f
PRS
PRS
= 20 MHz
= 20 MHz