參數(shù)資料
型號: M34518M4-XXXSP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP32
封裝: 0.400 INCH, 1.78 MM PITCH, PLASTIC, SDIP-32
文件頁數(shù): 9/157頁
文件大?。?/td> 1783K
代理商: M34518M4-XXXSP
ML610Q411/ML610Q412/ML610Q415 User’s Manual
Chapter 7
Time Base Counter
7 – 4
7.2.2
Low-Speed Time Base Counter (LTBR)
Address: 0F00AH
Access: R/W
Access size: 8 bits
Initial value: 00H
7
6
5
4
3
2
1
0
LTBR
T1HZ
T2HZ
T4HZ
T8HZ
T16HZ
T32HZ
T64HZ
T128HZ
R/W
Initial value
0
LTBR is a special function register (SFR) to read the T128HZ-T1HZ outputs of the low-speed time base counter.
The T128HZ-T1HZ outputs are set to “0” when write operation is performed for LTBR.
Note:
A TBC interrupt (128Hz interrupt, 32Hz interrupt, 16Hz interrupt, or 2Hz interrupt)* may occur depending on the
LTBR write timing (see Figure 7-4, “Interrupt Timing and Reset Timing by Writing to LTBR”).
Therefore, take care
in software programming.
(*) In the case of ML610Q415, the frequency will be {122Hz , 30.5Hz , 15.3Hz , and 1.9Hz}
± temperature variation
of RC oscillation.
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