ML610Q429-NNNTBZ03A7 Rohm Semiconductor, ML610Q429-NNNTBZ03A7 Datasheet - Page 105

• Manufacturer Part Number: ML610Q429-NNNTBZ03A7
• Description: MCU 8BIT 48K FLASH 128-TQFP
• Manufacturer: Rohm Semiconductor

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: -

7.
7.1
7.1.1
• LTBC generates T32KHZ to T1HZ signals by dividing the low-speed clock (LSCLK) frequency.
• LTBC allows frequency adjustment (Adjustment range: Approx. −488ppm to +488ppm. Adjustment accuracy:
• HTBC generates HTB1 to HTB32 signals by dividing the high-speed clock (HSCLK) frequency.
• Capable of generating 128Hz , 64Hz , 32Hz , 16Hz , 8Hz , 4Hz , 2Hz, and 1Hz interrupts.
7.1.2
This LSI includes a low-speed time base counter (LTBC) and a high-speed time base counter (HTBC) that generate
base clocks for peripheral circuits. By using the time base counter, it is possible to generate events periodically.
For input clocks, see Chapter 6, “Clock Generation Circuit”. For interrupt permission, interrupt request flags, etc.,
described in this chapter, see Chapter 5, “Interrupts”.
Figure 7-1 and Figure 7-2 show the configuration of a low-speed time base counter and a high-speed time base counter,
respectively.
Approx. 0.48ppm) by using the low-speed time base counter frequency adjustment registers (LTBADJH and
LTBADJL).
(Internal signal)
Time Base Counter
Overview
Features
Configuration
(32.768 kHz)
LTBR Write
RESET
LSCLK
LTBR
LTBADJL
LTBADJH
Figure 7-1 Configuration of Low-Speed Time Base Counter (LTBC)
: Low-speed time base counter register
: Low-speed time base counter frequency adjust register
: Low-speed time base counter frequency adjust register
7-bit Counter
R
7 – 1
8-bit Counter
R
LTBR
8
ML610Q428/ML610Q429 User’s Manual
LTBADJL
LTBDJH
Chapter 7 Time Base Counter
8
T32KHZ
T16KHZ
T8KHZ
T4KHZ
T2KHZ
T1KHZ
T512HZ
T256HZ
T128HZ
T64HZ
T32HZ
T16HZ
T8HZ
T4HZ
T2HZ
T1HZ
Data bus