Si5327-EVB Silicon Laboratories Inc, Si5327-EVB Datasheet - Page 51

• 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

Note: Internal register names are indicated by underlined italics, e.g., INT_PIN. See Section “5.Register Map”.
Pin #
18
21
22
23
25
24
26
27
SDA_SDO
Pin Name
CKSEL
A2_SS
LOL
SCL
SDI
A1
A0
I/O
I/O
O
I
I
I
I
I
Signal Level
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
PLL Loss of Lock Indicator.
This pin functions as the active high PLL loss of lock indicator if the
LOL_PIN register bit is set to 1.
0 = PLL locked
1 = PLL unlocked
If LOL_PIN = 0, this pin will tristate. Active polarity is controlled by
the LOL_POL bit. The PLL lock status will always be reflected in the
LOL_INT read only register bit.
Input Clock Select.
This pin functions as the manual input clock selector.
0 = Select CKIN1
1 = Select CKIN2
CKSEL should not be left open and should be driven to either logic
high or logic low.
Serial Clock.
This pin functions as the serial clock input for both SPI and I
modes.
This pin has a weak pull-down.
Serial Data.
In I
tional serial data port.
In SPI control mode (CMODE = 1), this pin functions as the serial
data output.
Serial Port Address.
In I
controlled address bits. The I
In SPI control mode (CMODE = 1), these pins are ignored.
These pins have a weak pull-down.
Serial Port Address/Slave Select.
In I
controlled address bit [A2].
In SPI control mode (CMODE = 1), this pin functions as the slave
select input.
This pin has a weak pull-down.
Serial Data In.
In I
In SPI control mode (CMODE = 1), this pin functions as the serial
data input.
This pin has a weak pull-down.
Preliminary Rev. 0.4
2
2
2
2
C control mode (CMODE = 0), this pin functions as the bidirec-
C control mode (CMODE = 0), these pins function as hardware
C control mode (CMODE = 0), this pin functions as a hardware
C control mode (CMODE = 0), this pin is ignored.
Description
2
C address is 1101 [A2] [A1] [A0].
Si5327
2
C
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