ML610Q409-NNNTBZ03A7 Rohm Semiconductor, ML610Q409-NNNTBZ03A7 Datasheet - Page 99

• Manufacturer Part Number: ML610Q409-NNNTBZ03A7
• Description: MCU 8BIT 16K FLASH 4CH 100-TQFP
• Manufacturer: Rohm Semiconductor
• Series: -r

Specifications of ML610Q409-NNNTBZ03A7

• Core Processor: nX-U8/100
• Core Size: 8-Bit
• Speed: 2MHz
• Connectivity: SSP, UART/USART
• Peripherals: LCD, Melody Driver, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.25 V ~ 3.6 V
• Data Converters: A/D 2x16b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 70°C
• Package / Case: 100-TFQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7. Time Base Counter
7.1 Overview
7.1.1 Features
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, “Interrupt”.
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.
(Internal signal)
(32.768kHz)
LTBR Write
•
•
•
•
RESET
Configuration
LSCLK
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:
Approx. 0.48ppm) by using the low-speed time base counter frequency adjustment registers (LTBADJH and
LTBADJL).
HTBC generates HTB1 to HTB32 signals by dividing the high-speed clock (HSCLK) frequency.
Capable of generating 128Hz , 32Hz , 16Hz , and 2Hz interrupts.
LTBR
LTBADJL : Low-speed time base counter frequency adjustment register
LTBADJH : Low-speed time base counter frequency adjustment register
: Low-speed time base counter register
Figure 7-1 Configuration of Low-Speed Time Base Counter (LTBC)
7bits-Counter
R
8bits-Counter
R
LTBR
7-1
ML610Q407/ML610Q408/ML610Q409 User's Manual
8
LTBADJL
LTBDJH
8
Chapter 7 Time Base Counter
T32KHZ
T16KHZ
T8KHZ
T4KHZ
T2KHZ
T1KHZ
T512HZ
T256HZ
T128HZ
T64HZ
T32HZ
T16HZ
T8HZ
T4HZ
T2HZ
T1HZ
Data bus