UPD78F0386GK-8EU-A Renesas Electronics America, UPD78F0386GK-8EU-A Datasheet - Page 237

• 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: -

9.1 Functions of Watch Timer
The watch timer has the following functions.
The watch timer and the interval timer can be used simultaneously.
Figure 9-1 shows the watch timer block diagram.
Remark
f
PRS
Watch timer
Interval timer
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
/2
Figure 9-1. Block Diagram of Watch Timer
6
f
WTM7
W
/2
CHAPTER 9 WATCH TIMER
7
Clear
f
W
/2
User’s Manual U17504EJ2V0UD
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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