Si5327-EVB Silicon Laboratories Inc, Si5327-EVB Datasheet - Page 46

• Manufacturer Part Number: Si5327-EVB
• Description: MCU, MPU & DSP Development Tools SI5327 EVAL BOARD
• Manufacturer: Silicon Laboratories Inc

Specifications of Si5327-EVB

• Processor To Be Evaluated: Si5327
• Interface Type: I2C, SPI
• Operating Supply Voltage: 3.3 V
• Lead Free Status / Rohs Status: Details

Si5327
Reset value = 1011 0010
Reset value = 0000 0000
46
Register 135.
Register 136.
Name
Name
Type
Type
7:4
3:0
5:0
Bit
Bit
Bit
Bit
7
6
PARTNUM_RO [11:0] Device ID (2 of 2).
RST_REG
RST_REG
Reserved
REVID_RO [3:0]
R/W
Name
D7
D7
ICAL
Name
PARTNUM_RO [3:0]
Internal Reset (Same as Pin Reset).
Note: The I
0: Normal operation.
1: Reset of all internal logic. Outputs disabled or tristated during reset.
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 “1” to this location initiates an ICAL. The calibration is com-
plete once the LOL alarm goes low.
0: Normal operation.
1: Writing a "1" initiates internal self-calibration. Upon completion of internal self-calibra-
tion, LOL will go low.
Notes:
ICAL
R/W
D6
D6
1. A valid stable clock (within 100 ppm) must be present to begin ICAL.
2. If the input changes by more than 500 ppm, the part may do an autonomous ICAL.
3. See Table 9, “Register Locations Requiring ICAL,” on page 53 for register changes that
require an ICAL.
0000 0001 1011: Si5327
Device Revision.
0000: Revision A
0001: Revision B
0010: Revision C
Others: Reserved
R
2
C (or SPI) port may not be accessed until 10 ms after RST_REG is asserted.
D5
D5
R
Preliminary Rev. 0.4
D4
D4
R
Function
D3
D3
R
Function
REVID_RO [3:0]
D2
D2
R
R
D1
D1
R
D0
D0
R