M30245FCGP#U1 Renesas Electronics America, M30245FCGP#U1 Datasheet - Page 71

• Manufacturer Part Number: M30245FCGP#U1
• Description: IC M16C/24 MCU FLSH 128K 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/20r

Specifications of M30245FCGP#U1

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, SSI, UART/USART, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-LQFP
• Package: 100LQFP
• Family Name: R8C
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 82
• Interface Type: USB/UART/I2C/SPI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M30245 Group
Figure 1.42. Block diagram of Watchdog timer
Figure 1.43. Watchdog timer control and start registers
Rev.2.00
REJ03B0005-0200
Write to the watchdog timer
start register
(address 000E
Oct 16, 2006
RESET
HOLD
BCLK
b7
Watchdog timer control register
Watchdog timer start register
b7
16
b6
0
)
b5
0
b4
b3
page 69 of 264
b2
b1
b0
b0
The W atchdog timer is initialized and starts counting after the first write instruction
to this register after reset. Writing any value to this register resets the counter to
7FFF
Bit symbol
High-order bit of Watchdog timer
Reserved bit
WDC7
Symbol
Symbol
16
WDTS
WDC
.
Prescaler
1/128
1/16
1/2
Prescaler select bit
"CM07 = 0"
"WDC7 = 0"
"CM07 = 0"
"WDC7 = 1"
"CM07 = 1"
Bit name
Address
Address
000F
000E
16
16
Function
Indeterminate
000XXXXX
When reset
When reset
Must always be set to "0"
0 : Divided by 16
1 : Divided by 128
Watchdog timer
2
Function
Set to
"7FFF
16
"
Watchdog Timer
R
R
W
W
Watchdog timer
interrupt request