UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 454

• Manufacturer Part Number: UPD70F3738GF-GAS-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3738GF-GAS-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

452
(3) Watch timer operation mode register (WTM)
The WTM register enables or disables the count clock and operation of the watch timer, sets the interval time
of the prescaler, controls the operation of the 5-bit counter, and sets the set time of the watch flag.
Set the PRSM0 register before setting the WTM register.
This register can be read or written in 8-bit or 1-bit units.
Reset sets this register to 00H.
WTM
After reset: 00H
WTM7
WTM7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
WTM6
R/W
WTM6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Address: FFFFF680H
WTM5
CHAPTER 10 WATCH TIMER
WTM5
User’s Manual U18953EJ5V0UD
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
WTM4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
WTM4
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Selection of interval time of prescaler
4
5
6
7
8
9
10
11
4
5
6
7
8
9
10
11
WTM3
/f
/f
/f
/f
/f
/f
/f
/f
/f
/f
/f
/f
/f
/f
/f
/f
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
(488 s: f
(977 s: f
(1.95 ms: f
(3.91 ms: f
(7.81 ms: f
(15.6 ms: f
(488 s: f
(977 s: f
(1.95 ms: f
(3.90 ms: f
(7.81 ms: f
(15.6 ms: f
(31.3 ms: f
(62.5 ms: f
(31.2 ms: f
(62.5 ms: f
μ
μ
μ
μ
WTM2
W
W
W
W
W
W
W
W
W
W
W
W
= f
= f
W
W
= f
= f
W
W
= f
= f
= f
= f
= f
= f
= f
= f
= f
= f
= f
= f
XT
XT
BRG
BRG
XT
XT
XT
XT
BRG
BRG
BRG
BRG
)
)
XT
XT
BRG
BRG
)
)
)
)
)
)
WTM1
)
)
)
)
)
)
< >
)
)
WTM0
< >
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