UPD78F0138HGK-9ET-A Renesas Electronics America, UPD78F0138HGK-9ET-A Datasheet - Page 230

• Manufacturer Part Number: UPD78F0138HGK-9ET-A
• Description: MCU 8BIT 60K FLASH 64TQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx1+r

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: -

228
Caution Do not change the count clock and interval time (by setting bits 4 to 7 (WTM4 to WTM7) of WTM)
Remarks 1. f
Address: FF6FH
Symbol
WTM
during watch timer operation.
2. f
3. f
4. Figures in parentheses apply to operation with f
W
X
XT
WTM7
WTM7
WTM6
WTM3
WTM1
WTM0
: High-speed system clock oscillation frequency
: Watch timer clock frequency (f
: Subsystem clock oscillation frequency
7
0
1
0
0
0
0
1
1
1
1
0
0
1
1
0
1
0
1
Figure 9-2. Format of Watch Timer Operation Mode Register (WTM)
After reset: 00H
f
f
Clear after operation stop
Start
Operation stop (clear both prescaler and timer)
Operation enable
X
XT
/2
WTM6
WTM5
WTM2
(32.768 kHz)
7
(78.125 kHz)
6
0
0
1
1
0
0
1
1
0
1
0
1
R/W
2
2
2
2
14
13
5
4
/f
/f
WTM5
WTM4
/f
/f
CHAPTER 9 WATCH TIMER
W
W
W
W
User’s Manual U16899EJ3V0UD
5
0
1
0
1
0
1
0
1
X
2
2
2
2
2
2
2
2
/2
4
5
6
7
8
9
10
11
/f
/f
/f
/f
/f
/f
7
WTM4
Watch timer count clock selection
/f
/f
W
W
W
W
W
W
or f
W
W
5-bit counter operation control
Watch timer operation enable
4
XT
)
X
Interrupt time selection
= 10 MHz, f
WTM3
Prescaler interval time selection
3
XT
WTM2
= 32.768 kHz.
2
WTM1
<1>
WTM0
<0>