ML610Q428-NNNTBZ03A7 Rohm Semiconductor, ML610Q428-NNNTBZ03A7 Datasheet - Page 161
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ML610Q428-NNNTBZ03A7
Manufacturer Part Number
ML610Q428-NNNTBZ03A7
Description
MCU 8BIT 48K FLASH 128-TQFP
Manufacturer
Rohm Semiconductor
Datasheets
1.ML610Q482P-NNNTB03A7.pdf
(20 pages)
2.ML610Q428-NNNTBZ03A7.pdf
(32 pages)
3.ML610Q428-NNNTBZ03A7.pdf
(434 pages)
Specifications of ML610Q428-NNNTBZ03A7
Core Processor
nX-U8/100
Core Size
8-Bit
Speed
4.2MHz
Connectivity
I²C, SSP, UART/USART
Peripherals
LCD, Melody Driver, POR, PWM, WDT
Number Of I /o
14
Program Memory Size
48KB (24K x 16)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.1 V ~ 3.6 V
Data Converters
A/D 2x12b, 2x24b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 70°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ML610Q428-NNNTBZ03A7
Manufacturer:
ROHM
Quantity:
750
Company:
Part Number:
ML610Q428-NNNTBZ03A7
Manufacturer:
Rohm Semiconductor
Quantity:
10 000
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11.
11.1 Overview
11.1.1
11.1.2
This LSI incorporates a watchdog timer (WDT) that operates at a system reset unconditionally (free-run operation) in
order to detect an undefined state of the MCU and return from that state.
If the WDT counter overflows due to the failure of clearing of the WDT counter within the WDT overflow period, the
watchdog timer requests a WDT interrupt (non-maskable interrupt). When the second overflow occurs, the watchdog
timer generates a WDT reset signal and shifts the mode to a system reset mode.
For interrupts see Chapter 5, “Interrupts,” and for WDT interrupt see Chapter 3, “Reset Function”.
• Non-maskable interrupt
• Free running (cannot be stopped)
• One of four types of overflow periods (125ms, 500ms, 2s, and 8s) selectable by software
• Reset generated by the second overflow
Figure 11-1 shows the configuration of the watchdog timer.
Watchdog Timer
Features
Configuration
WDTMOD
WDTCON
WDTMOD
T256HZ
WDTCON
Figure 11-1 Configuration of Watchdog Timer
detection
: Watchdog timer control register
: Watchdog timer mode register
“5AH”
WDT counter
detection
“0A5H”
R
WDT overflow
11 – 1
Reset interrupt
D
R
QN
Q
control
WDP
ML610Q428/ML610Q429 User’s Manual
RESET_S
System reset
WDTCON Write
Data bus
WDT reset
WDTINT
Non-maskable interrupt
Chapter 11 Watchdog Timer
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