ML610Q409-NNNTBZ03A7 Rohm Semiconductor, ML610Q409-NNNTBZ03A7 Datasheet - Page 107

• 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

Table 7-1 Correspondence between Frequency Adjustment Values (LTBADJH, LTBADJL) and Adjustment Ratio
7.3.3
Frequency adjustment (Adjustment range: Approx. -488ppm to +488ppm. Adjustment accuracy: Approx. 0.48ppm) is
possible for outputs of T8KHZ to T1HZ of LTBC by using the low-speed time base counter frequency adjust registers
(LTBADJH and LTBADJL).
Table7-1 shows correspondence between the frequency adjustment values (LTBADJH, LTBADJL) and adjustment ratio.
The adjustment values (LADJ10 to LADJ0) to be set in LTBADJH and LTBADJL can be obtained by using the
following equations:
Note:
Example 1: When adjusting +15.0ppm (when the clock loses)
Example 2: When adjusting −25.5ppm (when the clock gains)
The low-speed clock (LSCLK) and the outputs of T32KHZ and T16KHZ of LTBC are not adjusted by the frequency
adjust function.
The frequency adjustment accuracy does not guarantee the accuracy including the frequency variation of the crystal
oscillation (32.768kHz) due to temperature variations.
Low-Speed Time Base Counter Frequency Adjustment Function
0
0
0
0
0
0
1
1
1
1
：
：
Adjustment value ＝ Frequency adjustment ratio x 2097152 (decimal)
Adjustment value ＝ +15.0ppm x 2097152 (decimal)
Adjustment value ＝ −25.5ppm x 2097152 (decimal)
1
1
0
0
0
0
1
1
0
0
：
：
＝ Frequency adjustment ratio x 200000h (hexadecimal)
＝ +15.0×10
＝ +31.45728 (decimal)
≒ 01Fh (hexadecimal)
＝ −25.5×10-6×2097152
＝ −53.477376 (decimal)
≒ 7CCh (hexadecimal)
1
1
：
0
0
0
0
1
1
：
0
0
1
1
：
0
0
0
0
1
1
：
0
0
-6
1
1
0
0
0
0
1
1
0
0
：
：
×2097152
LADJ10∼0
1
1
：
0
0
0
0
1
1
：
0
0
1
1
：
0
0
0
0
1
1
：
0
0
1
1
0
0
0
0
1
1
0
0
：
：
7-9
1
1
0
0
0
0
1
1
0
0
：
：
ML610Q407/ML610Q408/ML610Q409 User's Manual
1
1
：
1
1
0
0
1
1
：
0
0
1
0
：
1
0
1
0
1
0
：
1
0
Hexadeci
3FEH
7FEH
3FFH
7FFH
003H
002H
001H
000H
401H
400H
mal
Chapter 7 Time Base Counter
adjustment ratio
Frequency
+487.80
+487.33
-487.80
-488.28
(ppm)
+1.43
+0.95
+0.48
-0.48
-0.95
：
0
：