Si5369-EVB Silicon Laboratories Inc, Si5369-EVB Datasheet - Page 24

• Manufacturer Part Number: Si5369-EVB
• Description: MCU, MPU & DSP Development Tools SI5369 DEV KIT
• Manufacturer: Silicon Laboratories Inc

Specifications of Si5369-EVB

• Processor To Be Evaluated: Si5369
• Interface Type: I2C, SPI
• Operating Supply Voltage: 3.3 V
• Lead Free Status / Rohs Status: Details

5. Register Descriptions
Reset value = 0001 0100
24
Register 0.
Name
Type
4:2
Bit
Bit
7
6
5
1
0
CKOUT_ALWAYS_ON CKOUT Always On.
D7
R
BYPASS_REG
FREE_RUN
Reserved
Reserved
Reserved
FREE_RUN
Name
R/W
D6
CKOUT_ALWAYS_ON
Free Run.
Internal to the device, route XA/XB to CKIN2. This allows the device to lock to its
external reference.
0: Disable Free Run
1: Enable
This will bypass the SQ_ICAL function. Output will be available even if SQ_ICAL
is on and ICAL is not complete or successful. See Table 8.
0: Squelch output until part is calibrated (ICAL).
1: Provide an output. Note: The frequency may be significantly off until the part
is calibrated.
Bypass Register.
This bit enables or disables the PLL bypass mode. Use is only valid when the
part is in digital hold or before the first ICAL.
0: Normal operation
1: Bypass mode. Selected input clock is connected to CKOUT buffers, bypass-
ing PLL.
R/W
D5
Preliminary Rev. 0.4
D4
R
Function
D3
R
D2
R
BYPASS_REG
R/W
D1
D0
R