参数资料
型号: SI5319-EVB
厂商: Silicon Laboratories Inc
文件页数: 31/50页
文件大小: 0K
描述: BOARD EVALUATION SI5319
标准包装: 1
主要目的: 计时,时钟乘法器
嵌入式:
已用 IC / 零件: SI5319
主要属性: 1 输入,1 输出
次要属性: CML,CMOS,LVDS,LVPECL
已供物品: 板,CD,文档
Si5319
Rev. 1.0
37
Reset value = 0000 0000
Register 136.
Bit
D7D6D5D4D3D2D1D0
Name
RST_REG
ICAL
Reserved
GRADE_RO [1:0]
Type
R/W
R
Bit
Name
Function
7
RST_REG
Internal Reset (Same as Pin Reset).
Note:
The I2C (or SPI) port may not be accessed until 10 ms after RST_REG is asserted.
0: Normal operation.
1: Reset of all internal logic. Outputs disabled or tristated during reset.
6ICAL
Start an Internal Calibration Sequence.
For proper operation, the device must go through an internal calibration sequence. ICAL
is a self-clearing bit. Writing a one to this location initiates an ICAL. The calibration is
complete once the LOL alarm goes low. A valid stable clock (within 100 ppm) must be
present to begin ICAL.
Note: Any divider, CLKINn_RATE or BWSEL_REG changes require an ICAL to take
effect.
0: Normal operation.
1: Writing a "1" initiates internal self-calibration. Upon completion of internal self-calibra-
tion, LOL will go low.
5:2
Reserved
Reserved.
1:0
GRADE_RO
[1:0]
Indicates Maximum Clock Output Frequency of this Device.
Limits the range of the N1_HS divider.
00: N1_HS x NC1_LS > 4. Maximum clock output frequency = 1.4175 GHz.
01: N1_HS x NC1_LS > 6. Maximum clock output frequency = 808 MHz.
10: N1_HS x NC1_LS > 14. Maximum clock output frequency = 346 MHz.
11: N1_HS x NC1_LS > 20. Maximum clock output frequency = 243 MHz.
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