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): 11/157頁
文件大小: 1783K
代理商: M34518M4-XXXSP
ML610Q411/ML610Q412/ML610Q415 User’s Manual
Chapter 7
Time Base Counter
7 – 6
7.2.4
Low-Speed Time Base Counter Frequency Adjustment Registers L and H (LTBADJL, LTBADJH)
Address: 0F00CH
Access: R/W
Access size: 8/16 bits
Initial value: 00H
7
6
5
4
3
2
1
0
LTBADJL
LADJ7
LADJ6
LADJ5
LADJ4
LADJ3
LADJ2
LADJ1
LADJ0
R/W
Initial value
0
Address: 0F00DH
Access: R/W
Access size: 8 bits
Initial value: 00H
7
6
5
4
3
2
1
0
LTBADJH
LADJS
LADJ9
LADJ8
R/W
Initial value
0
LTBADJL and LTBADJH are special function registers (SFRs) to set the frequency adjustment values of the low-speed
time base clock.
[Description of Bits]
LADJS, LADJ9-LADJ8 (bits 2-0) LADJ7-LADJ0 (bits 7-0)
The LADJS and LADJ9 to LADJ0 bits are used to adjust frequency.
Adjustment range:
Approx.
488ppm to +488ppm.
Adjustment accuracy:
Approx. 0.48ppm
See Section 7.3.3, “Low-Speed Time Base Counter Frequency Adjustment Function” for the correspondence
between the frequency adjustment values (LTBADJH, LTBADJL) and adjustment ratio.
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