ML610Q409-NNNTBZ03A7 Rohm Semiconductor, ML610Q409-NNNTBZ03A7 Datasheet - Page 129

• 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

9.2.9
Address: 0F03DH
Access: R/W
Access size: 8-bit
Initial value: 00H
TM3C is a special function register (SFR) that functions as an 8-bit binary counter.
When write operation to TM3C is performed, TM3C is set to “00H”. The data that is written is meaningless.
In 16-bit timer mode and 16-bit timer frequency measurement mode, if write operation is performed to either the
low-order (TM2C) or high-order (TM3C), both the low order and the high order are set to “0000H”.
When reading TM3C in 16-bit timer mode, be sure to read TM2C first since the count value of TM3C is stored in the
TM3C latch when TM2C is read.
During timer operation, the TM3C content may not be read depending on the conditions of the timer clock and the
system clock.
Table 9-4 shows whether a TM3C read is enabled or disabled during timer operation for each condition of the timer
clock and system clock.
Initial value
External clock
Timer clock
TM3C
Timer 3 Counter Register (TM3C)
R/W
HTBCLK
HTBCLK
LSCLK
LSCLK
T3CK
T3C7
R/W
7
0
Table 9-4 TM3C Read Enable/Disable during Timer Operation
System clock
SYSCLK
HSCLK
HSCLK
HSCLK
LSCLK
LSCLK
LSCLK
T3C6
R/W
6
0
Read enabled.
Read enabled. However, to prevent the reading of undefined data
during incremental counting, read TM3C twice and check that the
results match.
Read disabled.
Read enabled.
Read disabled.
T3C5
R/W
5
0
9-11
T3C4
R/W
4
0
ML610Q407/ML610Q408/ML610Q409 User's Manual
TM3C read enable/disable
T3C3
R/W
3
0
T3C2
R/W
2
0
T3C1
R/W
0
1
Chapter 9 Timer
T3C0
R/W
0
0