ML610Q428-NNNTBZ03A7 Rohm Semiconductor, ML610Q428-NNNTBZ03A7 Datasheet - Page 166
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
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Price
Company:
Part Number:
ML610Q428-NNNTBZ03A7
Manufacturer:
ROHM
Quantity:
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Company:
Part Number:
ML610Q428-NNNTBZ03A7
Manufacturer:
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Quantity:
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4 “0A5H” is written to WDTCON and the WDT counter is cleared. (Internal pointer 1→0)
5 “5AH” is written o WDTCON. (Internal pointer 0→1)
6 When “5AH” is written to WDTCON after the occurrence of abnormality, it cannot be accepted as the internal
7 Although “0A5H” is written to WDTCON, the WDT counter is not cleared since the internal pointer is “0” and the
8 The WDT counter overflows and a watchdog timer interrupt request (WDTINT) is generated. In this case, the
9 If the WDT counter is not cleared even by the software processing performed following a watchdog timer interrupt
Note:
Figure 11-2 shows an example of watchdog timer operation.
1 The WDT counter starts counting after the system reset has been released and the low-speed clock oscillation start.
2 The overflow period of the WDT counter (TWOV) is set to WDTMOD.
3 “5AH” is written to WDTCON. (Internal pointer 0→1)
• In STOP mode, the watchdog timer operation also stops.
• In HALT mode, the watchdog timer operation does not stop. When the WDT interrupt occurs, the HALT mode is
• The watchdog timer cannot detect all the abnormal operations. Even if the CPU loses control, the watchdog timer
released.
cannot detect the abnormality in the operation state in which the WDT counter is cleared.
pointer is set to “1”. (Internal pointer 1→0)
writing of “5AH” is not accepted in 6. (Internal pointer 0→1)
internal pointer is cleared to “0”.
and the WDT counter overflows again, WDT reset occurs and the mode is shifted to a system reset mode.
WDTCON Write
Internal pointer
WDT interrupt
WDT counter
System reset
WDT reset
RESET_S
WDTINT
WDTP
oscillation start
Low-speed
Data:
Figure 11-2 Example of Watchdog Timer Operation
2WDTMOD
5A
3
setting
A5
4
Occurrence of
Overflow period
abnormality
5A
5
T
WOV
5A
6
11 – 6
A5
7
8Occurrence of
Overflow period
WDTINT
ML610Q428/ML610Q429 User’s Manual
Overflow
T
WOV
Chapter 11 Watchdog Timer
Program
9Occurrence of
start
WDT reset
WDTMOD
5A
setting
A5
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