ML610Q429-NNNTBZ03A7 Rohm Semiconductor, ML610Q429-NNNTBZ03A7 Datasheet - Page 111
ML610Q429-NNNTBZ03A7
Manufacturer Part Number
ML610Q429-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 ML610Q429-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
20
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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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ML610Q429-NNNTBZ03A7
Manufacturer:
Rohm
Quantity:
900
Company:
Part Number:
ML610Q429-NNNTBZ03A7
Manufacturer:
Rohm Semiconductor
Quantity:
10 000
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7.3
7.3.1
The low-speed time base counter (LTBC) starts counting from 0000H on the LSCLK falling edge after system reset.
The T128HZ, T64HZ, T32HZ, T16HZ, T8HZ, T4HZ, T2HZ, and T1HZ outputs of LTBC are used as time base
interrupts and an interrupt is requested on the falling edge of each output. Each of LTBC outputs is also used as an
operation clock for peripheral circuits.
The output data of T128HZ to T1HZ of LTBC can be read from the low-speed time base counter register (LTBR).
When reading the data, read LTBR twice and check that the two values coincide to prevent reading of undefined data
during counting.
Figure 7-3 shows an example of program to read LTBR.
LTBR is reset when write operation is performed and the T128HZ to T1HZ outputs are set to “0”. Write data is invalid.
Since an interrupt occurs if a falling edge occurs in the T128Hz to T1Hz outputs during writing to LTBR, take care in
software programming. Figure 7-4 shows interrupt generation timing and reset timing of the time base counter output
by writing to LTBR.
MARK:
;
;
Description of Operation
LTBR Write
Low-Speed Time Base Counter
T256HZ
T128HZ
T64HZ
T32HZ
T16HZ
T16HZ
T8HZ
T4HZ
T2HZ
T1HZ
LEA
L
L
CMP
BNE
Figure 7-4 Interrupt Timing and Reset Timing by Writing to LTBR
:
Figure 7-3 Programming Example for Reading LTBR
offset LTBR
R0,
R1,
R0,
MARK
[EA]
[EA]
R1
; EA←LTBR address
; 1st read
; 2nd read
; Comparison for LTBR
; To MARK when the values do not coincide
7 – 7
ML610Q428/ML610Q429 User’s Manual
Chapter 7 Time Base Counter
Indicates interrupt timing
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