UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 492

• 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: -

12.2 Configuration
490
Watchdog timer 2 includes the following hardware.
The following shows the block diagram of watchdog timer 2.
Remark f
Watchdog timer enable
register (WDTE)
f
XX
f
R
/2
/2
f
f
f
INTWDT2:
WDTRES2: Watchdog timer 2 reset signal
XT
XX
XT
R
9
3
:
:
:
Control registers
controller
Clock
input
Item
2
Main clock frequency
Subclock frequency
Internal oscillator clock frequency
Non-maskable interrupt request signal from watchdog timer 2
Figure 12-1. Block Diagram of Watchdog Timer 2
Table 12-1. Configuration of Watchdog Timer 2
Watchdog timer mode
register 2 (WDTM2)
counter
16-bit
0
Watchdog timer mode register 2 (WDTM2)
Watchdog timer enable register (WDTE)
CHAPTER 12 WATCHDOG TIMER 2
WDM21 WDM20
Clear
f
f
f
XX
XT
R
User’s Manual U18953EJ5V0UD
/2
/2
/2
12
18
9
Internal bus
to f
to f
to f
XT
R
WDCS24
XX
/2
/2
/2
19
16
25
,
,
WDCS23
Selector
Configuration
3
WDCS22
WDCS21 WDCS20
controller
Output
3
INTWDT2
WDT2RES
(internal reset signal)