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參數(shù)資料
| 型號： | CYRF69103 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Programmable Radio on Chip Low Power |
| 中文描述： | 可編程片上無線電低功耗 |
| 文件頁數(shù)： | 23/73頁 |
| 文件大?。?/td> | 683K |
| 代理商： | CYRF69103 |
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CYRF69103
Document #: 001-07611 Rev *B
Page 23 of 73
Figure 11. Programmable Interval Timer Block Diagram
Internal Clock Trim
System
Clock
Clock
Timer
Configuration
Status and
Control
12-bit
reload
value
12-bit down
counter
12-bit
reload
counter
Interrupt
Controller
Table 35.IOSC Trim (IOSCTR) [0x34] [R/W]
Bit #
Field
Read/Write
Default
The IOSC Calibrate register is used to calibrate the internal oscillator. The reset value is undefined but during boot the SROM writes a calibration
value that is determined during manufacturing test. The ‘D’ indicates that the default value is trimmed to 24 MHz @ 3.30V at power on
Bits 7:5
foffset [2:0]
This value is used to trim the frequency of the internal oscillator. These bits are not used in factory calibration and will be zero.
Setting each of these bits causes the appropriate fine offset in oscillator frequency
foffset bit 0 = 7.5 kHz
foffset bit 1 = 15 kHz
foffset bit 2 = 30 kHz
Bits 4:0
Gain [4:0]
The effective frequency change of the offset input is controlled through the gain input. A lower value of the gain setting increases
the gain of the offset input. This value sets the size of each offset step for the internal oscillator. Nominal gain change (KHz/off-
setStep) at each bit, typical conditions (24-MHz operation)
Gain bit 0 = –1.5 kHz
Gain bit 1 = –3.0 kHz
Gain bit 2 = –6 kHz
Gain bit 4 = –24 kHz
7
6
5
4
3
2
1
0
foffset[2:0]
R/W
0
Gain[4:0]
R/W
D
R/W
0
R/W
0
R/W
D
R/W
D
R/W
D
R/W
D
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| CYRF69103_12 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Programmable Radio on Chip Low Power |
| CYRF69103_13 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Programmable Radio on Chip Low Power |
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